Bump langium-cli from 3.5.2 to 4.2.0

Bumps [langium-cli](https://github.com/eclipse-langium/langium/tree/HEAD/packages/langium-cli) from 3.5.2 to 4.2.0.
- [Release notes](https://github.com/eclipse-langium/langium/releases)
- [Changelog](https://github.com/eclipse-langium/langium/blob/main/packages/langium-cli/CHANGELOG.md)
- [Commits](https://github.com/eclipse-langium/langium/commits/HEAD/packages/langium-cli)

---
updated-dependencies:
- dependency-name: langium-cli
  dependency-version: 4.2.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -52,7 +52,7 @@
         "esbuild": "^0.27.3",
         "esbuild-plugin-copy": "^2.1.1",
         "eslint": "^9.39.1",
-        "langium-cli": "^3.5.2",
+        "langium-cli": "^4.2.0",
         "shx": "^0.4.0",
         "typescript": "^5.9.3",
         "typescript-eslint": "^8.55.0",