Bump pytest from 7.4.4 to 8.1.1 (#660)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 7.4.4 to 8.1.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@7.4.4...8.1.1)

---
updated-dependencies:
- dependency-name: pytest
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Henrik Skupin <mail@hskupin.info>

requirements/tests.txt

@@ -1,5 +1,5 @@
 coveralls[yaml]==3.3.1
-pytest==7.4.4
+pytest==8.1.1
 pytest-cov==5.0.0
 pytest-mock==3.14.0
 wptserve==4.0.2