auto dependabot: bump mocha from 11.7.6 to 12.0.0

Bumps [mocha](https://github.com/mochajs/mocha) from 11.7.6 to 12.0.0.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/main/CHANGELOG.md)
- [Commits](mochajs/mocha@v11.7.6...v12.0.0)

---
updated-dependencies:
- dependency-name: mocha
  dependency-version: 12.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]