Bump mini-css-extract-plugin from 2.1.0 to 2.2.0

Bumps [mini-css-extract-plugin](https://github.com/webpack-contrib/mini-css-extract-plugin) from 2.1.0 to 2.2.0.
- [Release notes](https://github.com/webpack-contrib/mini-css-extract-plugin/releases)
- [Changelog](https://github.com/webpack-contrib/mini-css-extract-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/mini-css-extract-plugin/compare/v2.1.0...v2.2.0)

---
updated-dependencies:
- dependency-name: mini-css-extract-plugin
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -280,7 +280,7 @@
     "jsdom": "^16.6.0",
     "json-loader": "^0.5.7",
     "listr": "^0.14.3",
-    "mini-css-extract-plugin": "^2.1.0",
+    "mini-css-extract-plugin": "^2.2.0",
     "node-loader": "^2.0.0",
     "node-sass": "^6.0.1",
     "prettier": "^2.3.2",

yarn.lock

@@ -8739,12 +8739,12 @@ 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@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-2.1.0.tgz#4aa6558b527ad4c168fee4a20b6092ebe9f98309"
-  integrity sha512-SV1GgjMcfqy6hW07rAniUbQE4qS3inh3v4rZEUySkPRWy3vMbS3jUCjMOvNI4lUnDlQYJEmuUqKktTCNY5koFQ==
+mini-css-extract-plugin@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-2.2.0.tgz#48cb6d2bea8fa9eb36709856e003662eebb3eb92"
+  integrity sha512-91HeVHbq7PUJ4TwOuMTlFWfVWrLqf3SF0PlEDPV+wtgsfxrMebN9LLzflyQqdKLp4/H3PexRB1WLKsCqpWKkxQ==
   dependencies:
-    schema-utils "^3.0.0"
+    schema-utils "^3.1.0"
 
 minimalistic-assert@^1.0.0:
   version "1.0.1"