build(deps): bump pytest

Bumps [pytest](https://github.com/pytest-dev/pytest) from 9.0.2 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@9.0.2...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]

packages/google-cloud-bigquery-storage/samples/snippets/requirements-test.txt

@@ -1,4 +1,4 @@
 google-cloud-testutils==1.7.0
 pytest===7.4.3; python_version == '3.7'
 pytest===8.3.5; python_version == '3.8'
-pytest==9.0.2; python_version >= '3.9'
+pytest==9.0.3; python_version >= '3.9'

packages/google-cloud-bigquery-storage/samples/snippets/requirements.txt

@@ -3,4 +3,4 @@ google-cloud-bigquery===3.30.0; python_version <= '3.8'
 google-cloud-bigquery==3.40.1; python_version >= '3.9'
 pytest===7.4.3; python_version == '3.7'
 pytest===8.3.5; python_version == '3.8'
-pytest==9.0.2; python_version >= '3.9'
+pytest==9.0.3; python_version >= '3.9'