chore(deps): update dependency react-scripts to v2.1.8

Author: renovate-bot

package.json

@@ -12,7 +12,7 @@
  },
  "devDependencies": {
  "prettier": "1.16.4",
- "react-scripts": "2.1.6"
+ "react-scripts": "2.1.8"
  },
  "dependencies": {
  "connected-react-router": "4.5.0",

yarn.lock

@@ -7389,9 +7389,9 @@ react-app-polyfill@^0.2.2:
  raf "3.4.1"
  whatwg-fetch "3.0.0"
 
-react-dev-utils@^7.0.4:
- version "7.0.4"
- resolved "https://registry.yarnpkg.com/react-dev-utils/-/react-dev-utils-7.0.4.tgz#b63f8e3fb360c4fe4c29c7c44eb0953c0b1102b1"
+react-dev-utils@^8.0.0:
+ version "8.0.0"
+ resolved "https://registry.yarnpkg.com/react-dev-utils/-/react-dev-utils-8.0.0.tgz#7c5b227a45a32ea8ff7fbc318f336cf9e2c6e34c"
  dependencies:
  "@babel/code-frame" "7.0.0"
  address "1.0.3"
@@ -7479,9 +7479,9 @@ react-router@4.3.1, react-router@^4.3.1:
  prop-types "^15.6.1"
  warning "^4.0.1"
 
-react-scripts@2.1.6:
- version "2.1.6"
- resolved "https://registry.yarnpkg.com/react-scripts/-/react-scripts-2.1.6.tgz#6490c522997f22f82f1c6b89e3f889a7636d75df"
+react-scripts@2.1.8:
+ version "2.1.8"
+ resolved "https://registry.yarnpkg.com/react-scripts/-/react-scripts-2.1.8.tgz#21195bb928b2c0462aa98b2d32edf7d034cff2a9"
  dependencies:
  "@babel/core" "7.2.2"
  "@svgr/webpack" "4.1.0"
@@ -7519,7 +7519,7 @@ react-scripts@2.1.6:
  postcss-preset-env "6.5.0"
  postcss-safe-parser "4.0.1"
  react-app-polyfill "^0.2.2"
- react-dev-utils "^7.0.4"
+ react-dev-utils "^8.0.0"
  resolve "1.10.0"
  sass-loader "7.1.0"
  style-loader "0.23.1"