Update dependency mini-css-extract-plugin to v2 (#10729)

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

package.json

@@ -285,7 +285,7 @@
     "jest-enzyme": "^7.0.0",
     "jest-watch-typeahead": "^0.6.1",
     "lint-staged": "^11.0.0",
-    "mini-css-extract-plugin": "^1.0.0",
+    "mini-css-extract-plugin": "^2.0.0",
     "mock-express-request": "^0.2.0",
     "mock-express-response": "^0.3.0",
     "node-sass": "^6.0.0",

yarn.lock

@@ -8456,14 +8456,12 @@ min-indent@^1.0.0:
   resolved "https://registry.yarnpkg.com/min-indent/-/min-indent-1.0.1.tgz#a63f681673b30571fbe8bc25686ae746eefa9869"
   integrity sha512-I9jwMn07Sy/IwOj3zVkVik2JTvgpaykDZEigL6Rx6N9LbMywwUSMtxET+7lVoDLLd3O3IXwJwvuuns8UB/HeAg==
 
-mini-css-extract-plugin@^1.0.0:
-  version "1.3.9"
-  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-1.3.9.tgz#47a32132b0fd97a119acd530e8421e8f6ab16d5e"
-  integrity sha512-Ac4s+xhVbqlyhXS5J/Vh/QXUz3ycXlCqoCPpg0vdfhsIBH9eg/It/9L1r1XhSCH737M1lqcWnMuWL13zcygn5A==
+mini-css-extract-plugin@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-2.0.0.tgz#e3492a2dcd218a6103e4dec5e3a88b55157012ea"
+  integrity sha512-LzJaninAMkfVAUDldZ4lUidAeS8GD0w8tSUbZLscYXWmdTOjYuEoiIhwKvwHX6+42D2cRAl35pA9DHtvAv71JQ==
   dependencies:
-    loader-utils "^2.0.0"
     schema-utils "^3.0.0"
-    webpack-sources "^1.1.0"
 
 minimatch@^3.0.4, minimatch@~3.0.2:
   version "3.0.4"
@@ -13346,7 +13344,7 @@ webpack-merge@^5.7.3:
     clone-deep "^4.0.1"
     wildcard "^2.0.0"
 
-webpack-sources@^1.1.0, webpack-sources@^1.4.3:
+webpack-sources@^1.4.3:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.4.3.tgz#eedd8ec0b928fbf1cbfe994e22d2d890f330a933"
   integrity sha512-lgTS3Xhv1lCOKo7SA5TjKXMjpSM4sBjNV5+q2bqesbSPs5FjGmU6jjtBSkX9b4qW87vDIsCIlUPOEhbZrMdjeQ==