Update dependency mini-css-extract-plugin to v1 (#9749)

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

package.json

@@ -316,7 +316,7 @@
     "jest-enzyme": "^7.0.0",
     "jest-watch-typeahead": "^0.6.0",
     "json-loader": "^0.5.4",
-    "mini-css-extract-plugin": "^0.12.0",
+    "mini-css-extract-plugin": "^1.0.0",
     "mock-express-request": "^0.2.0",
     "mock-express-response": "^0.2.0",
     "node-sass": "^4.9.1",

yarn.lock

@@ -11400,16 +11400,6 @@ 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@^0.12.0:
-  version "0.12.0"
-  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-0.12.0.tgz#ddeb74fd6304ca9f99c1db74acc7d5b507705454"
-  integrity sha512-z6PQCe9rd1XUwZ8gMaEVwwRyZlrYy8Ba1gRjFP5HcV51HkXX+XlwZ+a1iAYTjSYwgNBXoNR7mhx79mDpOn5fdw==
-  dependencies:
-    loader-utils "^1.1.0"
-    normalize-url "1.9.1"
-    schema-utils "^1.0.0"
-    webpack-sources "^1.1.0"
-
 mini-css-extract-plugin@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-0.7.0.tgz#5ba8290fbb4179a43dd27cca444ba150bee743a0"
@@ -11420,6 +11410,16 @@ mini-css-extract-plugin@^0.7.0:
     schema-utils "^1.0.0"
     webpack-sources "^1.1.0"
 
+mini-css-extract-plugin@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-1.0.0.tgz#4afb39f3d97b1b92eacb1ac45025416089f831bd"
+  integrity sha512-IsmrPv1nkdSUtFCDrAsuv5kg0k/27sLxfXqSz8vLjnbRKrNgoRdQrUNA4MppawvD+GHLkNP6L1P93Bw50ALkbg==
+  dependencies:
+    loader-utils "^2.0.0"
+    normalize-url "1.9.1"
+    schema-utils "^3.0.0"
+    webpack-sources "^1.1.0"
+
 minimalistic-assert@^1.0.0, minimalistic-assert@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz#2e194de044626d4a10e7f7fbc00ce73e83e4d5c7"