chore(deps): update pytest-asyncio requirement from >=1.3.0 to >=1.4.0

Updates the requirements on [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio) to permit the latest version.
- [Release notes](https://github.com/pytest-dev/pytest-asyncio/releases)
- [Commits](pytest-dev/pytest-asyncio@v1.3.0...v1.4.0)

---
updated-dependencies:
- dependency-name: pytest-asyncio
  dependency-version: 1.4.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements-test.txt

@@ -1,4 +1,4 @@
 # Test requirements for PetTracer Home Assistant integration
-pytest-asyncio>=1.3.0
+pytest-asyncio>=1.4.0
 pytest-homeassistant-custom-component>=0.13.340
 pytest-cov>=7.1.0