Update pytest requirement from >=9.0.3 to >=9.1.1

Updates the requirements on [pytest](https://github.com/pytest-dev/pytest) to permit the latest version.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@9.0.3...9.1.1)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.1.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -3,6 +3,6 @@ click>=8.1.0
 rich>=13.0.0
 
 # Dev / testing
-pytest>=9.0.3          # GHSA-6w46-j5rx-g56g (CVE-2025-71176) fixed in 9.0.3
+pytest>=9.1.1          # GHSA-6w46-j5rx-g56g (CVE-2025-71176) fixed in 9.0.3
 pre-commit>=3.7.0
 detect-secrets>=1.5.0