chore(deps): 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-test.txt

@@ -1,5 +1,5 @@
 # Test requirements for PetTracer Home Assistant integration
-pytest>=9.0.3
+pytest>=9.1.1
 pytest-asyncio>=1.3.0
 pytest-homeassistant-custom-component>=0.13.334
 pytest-cov>=7.1.0