Bump mini-css-extract-plugin from 2.8.0 to 2.8.1

Bumps [mini-css-extract-plugin](https://github.com/webpack-contrib/mini-css-extract-plugin) from 2.8.0 to 2.8.1.
- [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/v2.8.0...v2.8.1)

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

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

package.json

@@ -31,7 +31,7 @@
     "jquery-ujs": "^1.2.3",
     "jstree": "^3.3.16",
     "keycharm": "^0.4.0",
-    "mini-css-extract-plugin": "^2.8.0",
+    "mini-css-extract-plugin": "^2.8.1",
     "moment": "^2.30.1",
     "opensans-webkit": "^1.1.0",
     "pnp-webpack-plugin": "^1.7.0",

yarn.lock

@@ -2801,7 +2801,7 @@ __metadata:
     jquery-ujs: "npm:^1.2.3"
     jstree: "npm:^3.3.16"
     keycharm: "npm:^0.4.0"
-    mini-css-extract-plugin: "npm:^2.8.0"
+    mini-css-extract-plugin: "npm:^2.8.1"
     moment: "npm:^2.30.1"
     opensans-webkit: "npm:^1.1.0"
     pnp-webpack-plugin: "npm:^1.7.0"
@@ -5124,15 +5124,15 @@ __metadata:
   languageName: node
   linkType: hard
 
-"mini-css-extract-plugin@npm:^2.8.0":
-  version: 2.8.0
-  resolution: "mini-css-extract-plugin@npm:2.8.0"
+"mini-css-extract-plugin@npm:^2.8.1":
+  version: 2.8.1
+  resolution: "mini-css-extract-plugin@npm:2.8.1"
   dependencies:
     schema-utils: "npm:^4.0.0"
     tapable: "npm:^2.2.1"
   peerDependencies:
     webpack: ^5.0.0
-  checksum: fb69af136831451e7a8ab993996adedd74559fd5819fb75e53316e0b1b44bc5ea88a8fae17d39df3265f119be28a7be13054f3f99710f1394e16879eb51ad623
+  checksum: ef0064f32051294e76141ba74ddf139d313ba26f3abcef1a3906347ca75df8e69c490351bd4c2f373b0cf5c934f39c7d643c8615421c24e4d2c724345294f80a
   languageName: node
   linkType: hard