build(deps-dev): bump @babel/plugin-proposal-class-properties

Bumps [@babel/plugin-proposal-class-properties](https://github.com/babel/babel/tree/HEAD/packages/babel-plugin-proposal-class-properties) from 7.17.12 to 7.18.6.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.18.6/packages/babel-plugin-proposal-class-properties)

---
updated-dependencies:
- dependency-name: "@babel/plugin-proposal-class-properties"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -17,7 +17,7 @@
   "devDependencies": {
     "@babel/cli": "7.17.10",
     "@babel/core": "7.18.2",
-    "@babel/plugin-proposal-class-properties": "7.17.12",
+    "@babel/plugin-proposal-class-properties": "7.18.6",
     "@babel/plugin-proposal-export-default-from": "7.17.12",
     "@babel/plugin-proposal-export-namespace-from": "7.17.12",
     "@babel/plugin-proposal-nullish-coalescing-operator": "7.17.12",
@@ -60,7 +60,7 @@
     "unused-files-webpack-plugin": "3.4.0",
     "webpack": "5.72.1",
     "webpack-cli": "4.9.2",
-    "webpack-dev-server": "4.9.0",
+    "webpack-dev-server": "4.11.1",
     "webpack-merge": "5.8.0",
     "webpack-plugin-serve": "1.6.0"
   },