[Dependabot]: Update pytest requirement from ~=8.4 to ~=9.0

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@8.4.0...9.0.0)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

tests/requirements.txt

@@ -4,7 +4,7 @@
 Coverage ~= 7.11
 
 # Test Runner
-pytest ~= 8.4
+pytest ~= 9.0
 pytest-cov ~= 7.0
 
 # Static Type Checking