feat: move istanbul-lib-coverage from peer to prod dependencies

Author: bahmutov

README.md

@@ -11,11 +11,7 @@ This plugin will slow down your tests. There will be more web application JavaSc
 npm install -D @cypress/code-coverage
 ```
 
-and its peer dependencies
-
-```shell
-npm install -D istanbul-lib-coverage cypress
-```
+Note: this plugin assumes `cypress` is a peer dependency already installed in your project.
 
 Add to your `cypress/support/index.js` file
 

package-lock.json

@@ -21,8 +21,7 @@
     "effective:config": "circleci config process .circleci/config.yml | sed /^#/d"
   },
   "peerDependencies": {
-    "cypress": "*",
-    "istanbul-lib-coverage": "*"
+    "cypress": "*"
   },
   "repository": {
     "type": "git",
@@ -53,15 +52,15 @@
     "@cypress/browserify-preprocessor": "2.1.4",
     "debug": "4.1.1",
     "execa": "4.0.0",
-    "nyc": "15.0.0"
+    "nyc": "15.0.0",
+    "istanbul-lib-coverage": "3.0.0"
   },
   "devDependencies": {
     "@babel/core": "7.9.0",
     "@istanbuljs/nyc-config-typescript": "1.0.1",
     "babel-plugin-istanbul": "6.0.0",
     "cypress": "4.2.0",
     "express": "4.17.1",
-    "istanbul-lib-coverage": "3.0.0",
     "lodash": "4.17.15",
     "markdown-link-check": "3.8.0",
     "parcel-bundler": "1.12.4",