Bump fork-ts-checker-webpack-plugin from 8.0.0 to 9.0.0

Bumps [fork-ts-checker-webpack-plugin](https://github.com/TypeStrong/fork-ts-checker-webpack-plugin) from 8.0.0 to 9.0.0.
- [Release notes](https://github.com/TypeStrong/fork-ts-checker-webpack-plugin/releases)
- [Changelog](https://github.com/TypeStrong/fork-ts-checker-webpack-plugin/blob/main/CHANGELOG.md)
- [Commits](TypeStrong/fork-ts-checker-webpack-plugin@v8.0.0...v9.0.0)

---
updated-dependencies:
- dependency-name: fork-ts-checker-webpack-plugin
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -47,7 +47,7 @@
     "exports-loader": "^4.0.0",
     "file-loader": "^6.2.0",
     "filemanager-webpack-plugin": "^8.0.0",
-    "fork-ts-checker-webpack-plugin": "^8.0.0",
+    "fork-ts-checker-webpack-plugin": "^9.0.0",
     "grunt": "^1.6.1",
     "grunt-contrib-connect": "^4.0.0",
     "grunt-contrib-qunit": "^8.0.1",