build: bump pytest from 8.4.2 to 9.0.0

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.4.2 to 9.0.0.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.4.2...9.0.0)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -57,7 +57,7 @@ tests = [
   "grpcio-health-checking==1.76.0",
   "hypothesis==6.147.0",
   "pyfakefs==5.10.2",
-  "pytest==8.4.2",
+  "pytest==9.0.0",
   "pytest-cov==7.0.0",
 ]