Bump pytest from 9.0.3 to 9.1.1

Bumps [pytest](https://github.com/pytest-dev/pytest) from 9.0.3 to 9.1.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/9.0.3...9.1.1)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.1.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

requirements-dev.txt

@@ -33,7 +33,7 @@ mistune==3.3.2
 py2exe==0.14.2.0; sys_platform == 'win32'
 
 # Testing
-pytest==9.0.3
+pytest==9.1.1
 pytest-cov==7.1.0  # Pytest code coverage support
 coverage[toml]==7.14.1 # pytest-cov dep. This is here to ensure that it includes TOML support for pyproject.toml configs
 coverage-conditional-plugin==0.9.0