Bump node-sass from 4.7.2 to 4.9.2

Bumps [node-sass](https://github.com/sass/node-sass) from 4.7.2 to 4.9.2.
- [Release notes](https://github.com/sass/node-sass/releases)
- [Changelog](https://github.com/sass/node-sass/blob/master/CHANGELOG.md)
- [Commits](sass/node-sass@v4.7.2...v4.9.2)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Author: dependabot-support

package.json

@@ -92,7 +92,7 @@
     "mime": "^2.3.1",
     "mongoose": "~4.13.2",
     "multer": "~1.3.0",
-    "node-sass": "~4.7.2",
+    "node-sass": "~4.9.2",
     "nyc": "^12.0.2",
     "quill-url-embeds": "^1.2.5",
     "raven": "~2.6.1",

yarn.lock

@@ -894,10 +894,6 @@ capture-stack-trace@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/capture-stack-trace/-/capture-stack-trace-1.0.0.tgz#4a6fa07399c26bba47f0b2496b4d0fb408c5550d"
 
-caseless@~0.11.0:
-  version "0.11.0"
-  resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.11.0.tgz#715b96ea9841593cc33067923f5ec60ebda4f7d7"
-
 caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
@@ -2449,16 +2445,6 @@ gaze@^1.0.0:
   dependencies:
     globule "^1.0.0"
 
-generate-function@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
-
-generate-object-property@^1.1.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/generate-object-property/-/generate-object-property-1.2.0.tgz#9c0e1c40308ce804f4783618b937fa88f99d50d0"
-  dependencies:
-    is-property "^1.0.0"
-
 get-caller-file@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
@@ -2596,15 +2582,6 @@ har-schema@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
 
-har-validator@~2.0.6:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-2.0.6.tgz#cdcbc08188265ad119b6a5a7c8ab70eecfb5d27d"
-  dependencies:
-    chalk "^1.1.1"
-    commander "^2.9.0"
-    is-my-json-valid "^2.12.4"
-    pinkie-promise "^2.0.0"
-
 har-validator@~4.2.1:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-4.2.1.tgz#33481d0f1bbff600dd203d75812a6a5fba002e2a"
@@ -3039,20 +3016,6 @@ is-installed-globally@^0.1.0:
     global-dirs "^0.1.0"
     is-path-inside "^1.0.0"
 
-is-my-ip-valid@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-my-ip-valid/-/is-my-ip-valid-1.0.0.tgz#7b351b8e8edd4d3995d4d066680e664d94696824"
-
-is-my-json-valid@^2.12.4:
-  version "2.17.2"
-  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.17.2.tgz#6b2103a288e94ef3de5cf15d29dd85fc4b78d65c"
-  dependencies:
-    generate-function "^2.0.0"
-    generate-object-property "^1.1.0"
-    is-my-ip-valid "^1.0.0"
-    jsonpointer "^4.0.0"
-    xtend "^4.0.0"
-
 is-npm@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-npm/-/is-npm-1.0.0.tgz#f2fb63a65e4905b406c86072765a1a4dc793b9f4"
@@ -3093,10 +3056,6 @@ is-promise@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
 
-is-property@^1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
-
 is-redirect@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-redirect/-/is-redirect-1.0.0.tgz#1d03dded53bd8db0f30c26e4f95d36fc7c87dc24"
@@ -3354,10 +3313,6 @@ jsonify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
 
-jsonpointer@^4.0.0:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
-
 jsonwebtoken@^8.0.0, jsonwebtoken@^8.2.0:
   version "8.3.0"
   resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-8.3.0.tgz#056c90eee9a65ed6e6c72ddb0a1d325109aaf643"
@@ -3965,7 +3920,7 @@ mz@^2.4.0:
     object-assign "^4.0.1"
     thenify-all "^1.0.0"
 
-nan@^2.3.2, nan@^2.9.2:
+nan@^2.10.0, nan@^2.9.2:
   version "2.10.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
 
@@ -4059,9 +4014,9 @@ node-pre-gyp@^0.10.0:
     semver "^5.3.0"
     tar "^4"
 
-node-sass@~4.7.2:
-  version "4.7.2"
-  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.7.2.tgz#9366778ba1469eb01438a9e8592f4262bcb6794e"
+node-sass@~4.9.2:
+  version "4.9.2"
+  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.9.2.tgz#5e63fe6bd0f2ae3ac9d6c14ede8620e2b8bdb437"
   dependencies:
     async-foreach "^0.1.3"
     chalk "^1.1.1"
@@ -4075,10 +4030,10 @@ node-sass@~4.7.2:
     lodash.mergewith "^4.6.0"
     meow "^3.7.0"
     mkdirp "^0.5.1"
-    nan "^2.3.2"
+    nan "^2.10.0"
     node-gyp "^3.3.1"
     npmlog "^4.0.0"
-    request "~2.79.0"
+    request "2.87.0"
     sass-graph "^2.2.4"
     stdout-stream "^1.4.0"
     "true-case-path" "^1.0.2"
@@ -4592,10 +4547,6 @@ qs@6.5.2, qs@~6.5.1:
   version "6.5.2"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
 
-qs@~6.3.0:
-  version "6.3.2"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.3.2.tgz#e75bd5f6e268122a2a0e0bda630b2550c166502c"
-
 qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
@@ -4830,34 +4781,7 @@ request-promise@~4.2.2:
     stealthy-require "^1.1.0"
     tough-cookie ">=2.3.3"
 
-"request@>=2.9.0 <2.82.0":
-  version "2.81.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
-  dependencies:
-    aws-sign2 "~0.6.0"
-    aws4 "^1.2.1"
-    caseless "~0.12.0"
-    combined-stream "~1.0.5"
-    extend "~3.0.0"
-    forever-agent "~0.6.1"
-    form-data "~2.1.1"
-    har-validator "~4.2.1"
-    hawk "~3.1.3"
-    http-signature "~1.1.0"
-    is-typedarray "~1.0.0"
-    isstream "~0.1.2"
-    json-stringify-safe "~5.0.1"
-    mime-types "~2.1.7"
-    oauth-sign "~0.8.1"
-    performance-now "^0.2.0"
-    qs "~6.4.0"
-    safe-buffer "^5.0.1"
-    stringstream "~0.0.4"
-    tough-cookie "~2.3.0"
-    tunnel-agent "^0.6.0"
-    uuid "^3.0.0"
-
-request@^2.78.0, request@~2.87.0:
+request@2.87.0, request@^2.78.0, request@~2.87.0:
   version "2.87.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.87.0.tgz#32f00235cd08d482b4d0d68db93a829c0ed5756e"
   dependencies:
@@ -4882,29 +4806,31 @@ request@^2.78.0, request@~2.87.0:
     tunnel-agent "^0.6.0"
     uuid "^3.1.0"
 
-request@~2.79.0:
-  version "2.79.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.79.0.tgz#4dfe5bf6be8b8cdc37fcf93e04b65577722710de"
+"request@>=2.9.0 <2.82.0":
+  version "2.81.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
   dependencies:
     aws-sign2 "~0.6.0"
     aws4 "^1.2.1"
-    caseless "~0.11.0"
+    caseless "~0.12.0"
     combined-stream "~1.0.5"
     extend "~3.0.0"
     forever-agent "~0.6.1"
     form-data "~2.1.1"
-    har-validator "~2.0.6"
+    har-validator "~4.2.1"
     hawk "~3.1.3"
     http-signature "~1.1.0"
     is-typedarray "~1.0.0"
     isstream "~0.1.2"
     json-stringify-safe "~5.0.1"
     mime-types "~2.1.7"
     oauth-sign "~0.8.1"
-    qs "~6.3.0"
+    performance-now "^0.2.0"
+    qs "~6.4.0"
+    safe-buffer "^5.0.1"
     stringstream "~0.0.4"
     tough-cookie "~2.3.0"
-    tunnel-agent "~0.4.1"
+    tunnel-agent "^0.6.0"
     uuid "^3.0.0"
 
 require-directory@^2.1.1:
@@ -5746,10 +5672,6 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
-tunnel-agent@~0.4.1:
-  version "0.4.3"
-  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.4.3.tgz#6373db76909fe570e08d73583365ed828a74eeeb"
-
 tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"