Bump mocha from 11.2.2 to 11.5.0 in /client (#468)

Bumps [mocha](https://github.com/mochajs/mocha) from 11.2.2 to 11.5.0.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/main/CHANGELOG.md)
- [Commits](mochajs/mocha@v11.2.2...v11.5.0)

---
updated-dependencies:
- dependency-name: mocha
  dependency-version: 11.5.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

client/package-lock.json

@@ -21,7 +21,7 @@
         "@types/vscode": "1.100.0",
         "@vscode/test-electron": "^2.4.1",
         "glob": "^11.0.2",
-        "mocha": "^11.2.2"
+        "mocha": "^11.6.0"
     },
     "dependencies": {
         "@types/lodash": "^4.17.17",