build(deps-dev): bump mini-css-extract-plugin from 2.6.1 to 2.7.6 (#1856)

Bumps [mini-css-extract-plugin](https://github.com/webpack-contrib/mini-css-extract-plugin) from 2.6.1 to 2.7.6.
- [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](webpack/mini-css-extract-plugin@v2.6.1...v2.7.6)

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

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

Author: dependabot[bot]

package.json

@@ -112,7 +112,7 @@
     "markdownlint": "^0.26.2",
     "markdownlint-cli": "^0.37.0",
     "mdast-util-to-string": "^3.1.0",
-    "mini-css-extract-plugin": "^2.6.1",
+    "mini-css-extract-plugin": "^2.7.6",
     "mkdirp": "^1.0.4",
     "modularscale-sass": "^3.0.3",
     "node-fetch": "^3.2.10",

yarn.lock

@@ -9287,10 +9287,10 @@ min-indent@^1.0.0:
   resolved "https://registry.npmjs.org/min-indent/-/min-indent-1.0.1.tgz#a63f681673b30571fbe8bc25686ae746eefa9869"
   integrity sha512-I9jwMn07Sy/IwOj3zVkVik2JTvgpaykDZEigL6Rx6N9LbMywwUSMtxET+7lVoDLLd3O3IXwJwvuuns8UB/HeAg==
 
-mini-css-extract-plugin@^2.6.1:
-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-2.6.1.tgz#9a1251d15f2035c342d99a468ab9da7a0451b71e"
-  integrity sha512-wd+SD57/K6DiV7jIR34P+s3uckTRuQvx0tKPcvjFlrEylk6P4mQ2KSWk1hblj1Kxaqok7LogKOieygXqBczNlg==
+mini-css-extract-plugin@^2.7.6:
+  version "2.7.6"
+  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-2.7.6.tgz#282a3d38863fddcd2e0c220aaed5b90bc156564d"
+  integrity sha512-Qk7HcgaPkGG6eD77mLvZS1nmxlao3j+9PkrT9Uc7HAE1id3F41+DdBRYRYkbyfNRGzm8/YWtzhw7nVPmwhqTQw==
   dependencies:
     schema-utils "^4.0.0"