build(deps): bump mini-css-extract-plugin from 1.4.1 to 2.4.2

Bumps [mini-css-extract-plugin](https://github.com/webpack-contrib/mini-css-extract-plugin) from 1.4.1 to 2.4.2.
- [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/v1.4.1...v2.4.2)

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

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

.changeset/slow-frogs-deliver.md

@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+Bump mini-css-extract-plugin to v2

packages/cli/package.json

@@ -85,7 +85,7 @@
     "json-schema": "^0.3.0",
     "jest-transform-yaml": "^0.1.1",
     "lodash": "^4.17.21",
-    "mini-css-extract-plugin": "^1.4.1",
+    "mini-css-extract-plugin": "^2.4.2",
     "node-libs-browser": "^2.2.1",
     "ora": "^5.3.0",
     "postcss": "^8.1.0",

yarn.lock

@@ -19626,14 +19626,12 @@ min-indent@^1.0.0:
   resolved "https://registry.npmjs.org/min-indent/-/min-indent-1.0.0.tgz#cfc45c37e9ec0d8f0a0ec3dd4ef7f7c3abe39256"
   integrity sha1-z8RcN+nsDY8KDsPdTvf3w6vjklY=
 
-mini-css-extract-plugin@^1.4.1:
-  version "1.4.1"
-  resolved "https://registry.npmjs.org/mini-css-extract-plugin/-/mini-css-extract-plugin-1.4.1.tgz#975e27c1d0bd8e052972415f47c79cea5ed37548"
-  integrity sha512-COAGbpAsU0ioFzj+/RRfO5Qv177L1Z/XAx2EmCF33b8GDDqKygMffBTws2lit8iaPdrbKEY5P+zsseBUCREZWQ==
+mini-css-extract-plugin@^2.4.2:
+  version "2.4.2"
+  resolved "https://registry.npmjs.org/mini-css-extract-plugin/-/mini-css-extract-plugin-2.4.2.tgz#b3508191ea479388a4715018c99dd3e6dd40d2d2"
+  integrity sha512-ZmqShkn79D36uerdED+9qdo1ZYG8C1YsWvXu0UMJxurZnSdgz7gQKO2EGv8T55MhDqG3DYmGtizZNpM/UbTlcA==
   dependencies:
-    loader-utils "^2.0.0"
-    schema-utils "^3.0.0"
-    webpack-sources "^1.1.0"
+    schema-utils "^3.1.0"
 
 minimalistic-assert@^1.0.0, minimalistic-assert@^1.0.1:
   version "1.0.1"
@@ -24449,16 +24447,7 @@ schema-utils@^2.6.5, schema-utils@^2.6.6, schema-utils@^2.7.0:
     ajv "^6.12.4"
     ajv-keywords "^3.5.2"
 
-schema-utils@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.npmjs.org/schema-utils/-/schema-utils-3.0.0.tgz#67502f6aa2b66a2d4032b4279a2944978a0913ef"
-  integrity sha512-6D82/xSzO094ajanoOSbe4YvXWMfn2A//8Y1+MUqFAJul5Bs+yn36xbK9OtNDcRVSBJ9jjeoXftM6CfztsjOAA==
-  dependencies:
-    "@types/json-schema" "^7.0.6"
-    ajv "^6.12.5"
-    ajv-keywords "^3.5.2"
-
-schema-utils@^3.1.0, schema-utils@^3.1.1:
+schema-utils@^3.0.0, schema-utils@^3.1.0, schema-utils@^3.1.1:
   version "3.1.1"
   resolved "https://registry.npmjs.org/schema-utils/-/schema-utils-3.1.1.tgz#bc74c4b6b6995c1d88f76a8b77bea7219e0c8281"
   integrity sha512-Y5PQxS4ITlC+EahLuXaY86TXfR7Dc5lw294alXOq86JAHCihAIZfqv8nNCWvaEJvaC51uN9hbLGeV0cFBdH+Fw==
@@ -27772,7 +27761,7 @@ webpack-node-externals@^3.0.0:
   resolved "https://registry.npmjs.org/webpack-node-externals/-/webpack-node-externals-3.0.0.tgz#1a3407c158d547a9feb4229a9e3385b7b60c9917"
   integrity sha512-LnL6Z3GGDPht/AigwRh2dvL9PQPFQ8skEpVrWZXLWBYmqcaojHNN0onvHzie6rq7EWKrrBfPYqNEzTJgiwEQDQ==
 
-webpack-sources@^1.1.0, webpack-sources@^1.4.0, webpack-sources@^1.4.1, webpack-sources@^1.4.3:
+webpack-sources@^1.4.0, webpack-sources@^1.4.1, webpack-sources@^1.4.3:
   version "1.4.3"
   resolved "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.4.3.tgz#eedd8ec0b928fbf1cbfe994e22d2d890f330a933"
   integrity sha512-lgTS3Xhv1lCOKo7SA5TjKXMjpSM4sBjNV5+q2bqesbSPs5FjGmU6jjtBSkX9b4qW87vDIsCIlUPOEhbZrMdjeQ==