Bump json5 and ts-loader

Removes [json5](https://github.com/json5/json5). It's no longer used after updating ancestor dependency [ts-loader](https://github.com/TypeStrong/ts-loader). These dependencies need to be updated together.


Removes `json5`

Updates `ts-loader` from 6.2.2 to 9.4.2
- [Release notes](https://github.com/TypeStrong/ts-loader/releases)
- [Changelog](https://github.com/TypeStrong/ts-loader/blob/main/CHANGELOG.md)
- [Commits](TypeStrong/ts-loader@v6.2.2...v9.4.2)

---
updated-dependencies:
- dependency-name: json5
  dependency-type: indirect
- dependency-name: ts-loader
  dependency-type: direct:development
...

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

Author: dependabot[bot]

package-lock.json

@@ -460,7 +460,7 @@
     "minimist": ">=1.2.6",
     "mocha": "^9.2.2",
     "pom-parser": "^1.2.0",
-    "ts-loader": "^6.0.1",
+    "ts-loader": "^9.4.2",
     "typescript": "^4.1.0",
     "vscode-extension-tester": "^4.2.5",
     "vscode-extension-tester-native": "^3.0.0",