chore(deps): bump pytest from 7.4.4 to 8.1.1 in /requirements

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] <[email protected]>

requirements/testing.txt

@@ -1,3 +1,3 @@
 coveralls==3.3.1
 pytest-cov==4.1.0
-pytest==7.4.4
+pytest==8.1.1