chore(deps): bump css-loader from 5.2.7 to 6.5.1 (#6353)

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 5.2.7 to 6.5.1.
- [Release notes](https://github.com/webpack-contrib/css-loader/releases)
- [Changelog](https://github.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/css-loader/compare/v5.2.7...v6.5.1)

---
updated-dependencies:
- dependency-name: css-loader
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

packages/docusaurus/package.json

@@ -59,7 +59,7 @@
     "commander": "^5.1.0",
     "copy-webpack-plugin": "^9.0.1",
     "core-js": "^3.18.0",
-    "css-loader": "^5.1.1",
+    "css-loader": "^6.5.1",
     "css-minimizer-webpack-plugin": "^3.3.1",
     "cssnano": "^5.0.8",
     "del": "^6.0.0",

yarn.lock

@@ -6801,20 +6801,18 @@ css-declaration-sorter@^6.0.3:
   dependencies:
     timsort "^0.3.0"
 
-css-loader@^5.1.1:
-  version "5.2.7"
-  resolved "https://registry.yarnpkg.com/css-loader/-/css-loader-5.2.7.tgz#9b9f111edf6fb2be5dc62525644cbc9c232064ae"
-  integrity sha512-Q7mOvpBNBG7YrVGMxRxcBJZFL75o+cH2abNASdibkj/fffYD8qWbInZrD0S9ccI6vZclF3DsHE7njGlLtaHbhg==
+css-loader@^6.5.1:
+  version "6.5.1"
+  resolved "https://registry.yarnpkg.com/css-loader/-/css-loader-6.5.1.tgz#0c43d4fbe0d97f699c91e9818cb585759091d1b1"
+  integrity sha512-gEy2w9AnJNnD9Kuo4XAP9VflW/ujKoS9c/syO+uWMlm5igc7LysKzPXaDoR2vroROkSwsTS2tGr1yGGEbZOYZQ==
   dependencies:
     icss-utils "^5.1.0"
-    loader-utils "^2.0.0"
     postcss "^8.2.15"
     postcss-modules-extract-imports "^3.0.0"
     postcss-modules-local-by-default "^4.0.0"
     postcss-modules-scope "^3.0.0"
     postcss-modules-values "^4.0.0"
     postcss-value-parser "^4.1.0"
-    schema-utils "^3.0.0"
     semver "^7.3.5"
 
 css-minimizer-webpack-plugin@^3.3.1: