Update dependency shipjs to ^0.21.0 (#64)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -54,7 +54,7 @@
     "npm-run-all": "^4.1.5",
     "opener": "^1.5.1",
     "puppeteer": "^2.1.1",
-    "shipjs": "^0.20.0",
+    "shipjs": "^0.21.0",
     "ts-jest": "^26.0.0",
     "typescript": "^4.0.0",
     "typescript-eslint-language-service": "^3.0.0",

yarn.lock

@@ -7926,21 +7926,21 @@ shellwords@^0.1.1:
   resolved "https://registry.yarnpkg.com/shellwords/-/shellwords-0.1.1.tgz#d6b9181c1a48d397324c84871efbcfc73fc0654b"
   integrity sha512-vFwSUfQvqybiICwZY5+DAWIPLKsWO31Q91JSKl3UYv+K5c2QRPzn0qzec6QPu1Qc9eHYItiP3NdJqNVqetYAww==
 
-shipjs-lib@0.20.0:
-  version "0.20.0"
-  resolved "https://registry.yarnpkg.com/shipjs-lib/-/shipjs-lib-0.20.0.tgz#e622b08b590539c4344cb110f8a5efcaefd3df28"
-  integrity sha512-+zKtJ3Kap9rpP/l+UcFmon+1uQAZVjIJhTIaKAzrBzTGflA6VOelWnh9ZH6OFVVaRZJ3d/rWH/EAe9RpoExMwA==
+shipjs-lib@0.21.0:
+  version "0.21.0"
+  resolved "https://registry.yarnpkg.com/shipjs-lib/-/shipjs-lib-0.21.0.tgz#a4570c44903d28fb80e548c1907f8282264de190"
+  integrity sha512-TKMtbl9rDYs7kxK9QBM0cGXQYCRCmNF1ACLocsqwll7OwOKnWm/GeubeWi/tSEcj5E2jFUGS2ZLXKZ1jRW+SZw==
   dependencies:
     deepmerge "^4.2.2"
     dotenv "^8.1.0"
     parse-github-url "1.0.2"
     semver "6.3.0"
     shelljs "0.8.4"
 
-shipjs@^0.20.0:
-  version "0.20.0"
-  resolved "https://registry.yarnpkg.com/shipjs/-/shipjs-0.20.0.tgz#4dd1007880c481820234f8b74a45a106a2939299"
-  integrity sha512-1kyPCUGOjzMt6qELApDjePOMgaP/2sa/w7mImauDMkjVbRk7cqGWNdV5l565/Ihy+rhCCeol04t+GyAZDJ8KBw==
+shipjs@^0.21.0:
+  version "0.21.0"
+  resolved "https://registry.yarnpkg.com/shipjs/-/shipjs-0.21.0.tgz#28c76dec11502d1031b31921fa538cd66aeeee1b"
+  integrity sha512-ovrn6JhrMA9MV/xWGs69U7wv36cw/bWGL0pio9OodglC97HpZaRiO54vR9DPU6o/biqAvGMDglqFzhCA9On63Q==
   dependencies:
     "@babel/runtime" "^7.6.3"
     "@octokit/rest" "^17.0.0"
@@ -7961,7 +7961,7 @@ shipjs@^0.20.0:
     prettier "^2.0.0"
     serialize-javascript "^3.0.0"
     shell-quote "^1.7.2"
-    shipjs-lib "0.20.0"
+    shipjs-lib "0.21.0"
     temp-write "4.0.0"
     tempfile "^3.0.0"