Bump pytest from 8.2.1 to 9.0.3 in /tests

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.2.1 to 9.0.3.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.2.1...9.0.3)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.3
  dependency-type: direct:production
...

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

Author: dependabot[bot]

tests/requirements.txt

@@ -15,6 +15,6 @@
 # limitations under the License.
 
 mock==5.1.0
-pytest==8.2.1
+pytest==9.0.3
 requests==2.32.2
 pylint==3.2.2