Bump jest from 29.7.0 to 30.0.0 in /frontend

Bumps [jest](https://github.com/jestjs/jest/tree/HEAD/packages/jest) from 29.7.0 to 30.0.0.
- [Release notes](https://github.com/jestjs/jest/releases)
- [Changelog](https://github.com/jestjs/jest/blob/main/CHANGELOG.md)
- [Commits](https://github.com/jestjs/jest/commits/v30.0.0/packages/jest)

---
updated-dependencies:
- dependency-name: jest
  dependency-version: 30.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

frontend/sync-client/package.json

@@ -21,7 +21,7 @@
     "devDependencies": {
         "@types/jest": "^29.5.14",
         "@types/node": "^22.15.30",
-        "jest": "^29.7.0",
+        "jest": "^30.0.0",
         "sync_lib": "file:../../backend/sync_lib/pkg",
         "ts-jest": "^29.3.4",
         "ts-loader": "^9.5.2",