Update git submodules

* Update Wikibase from branch 'master'
  to 37f5d15c5485d683772ea00253a049aeaced31eb
  - Merge "Bump mocha from 9.2.2 to 10.2.0"
  - Bump mocha from 9.2.2 to 10.2.0
    
    Bumps [mocha](https://github.com/mochajs/mocha) from 9.2.2 to 10.2.0.
    - [Release notes](https://github.com/mochajs/mocha/releases)
    - [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
    - [Commits](mochajs/mocha@v9.2.2...v10.2.0)
    
    ---
    updated-dependencies:
    - dependency-name: mocha
      dependency-type: direct:development
      update-type: version-update:semver-major
    ...
    
    Signed-off-by: dependabot[bot] <[email protected]>
    Pull Request: wikimedia/mediawiki-extensions-Wikibase#316
    Change-Id: I2139ee26ff999e14a396925afc9d515ad0d3e6ea