Bump coveralls[yaml] from 3.3.1 to 4.0.0 (mozilla#673)

Bumps [coveralls[yaml]](https://github.com/TheKevJames/coveralls-python) from 3.3.1 to 4.0.0.
- [Release notes](https://github.com/TheKevJames/coveralls-python/releases)
- [Changelog](https://github.com/TheKevJames/coveralls-python/blob/master/CHANGELOG.md)
- [Commits](TheKevJames/coveralls-python@3.3.1...4.0.0)

---
updated-dependencies:
- dependency-name: coveralls[yaml]
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

requirements/tests.txt

@@ -1,4 +1,4 @@
-coveralls[yaml]==3.3.1
+coveralls[yaml]==4.0.0
 pytest==8.2.0
 pytest-cov==5.0.0
 pytest-mock==3.14.0