build(deps): bump pytest in /tests/opentelemetry-docker-tests/tests

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.0.2 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@8.0.2...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]

tests/opentelemetry-docker-tests/tests/test-requirements.txt

@@ -51,7 +51,7 @@ PyNaCl==1.6.2
 # prerequisite: install unixodbc
 pyodbc==5.0.1
 pyrsistent==0.20.0
-pytest==8.0.2
+pytest==9.0.3
 pytest-celery==0.0.0
 python-dateutil==2.9.0.post0
 python-dotenv==0.21.1