build(deps): bump pytest from 8.2 to 9.0.3 in /oldest

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.2 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@8.2.0...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]

oldest/requirements.txt

@@ -1,4 +1,4 @@
-pytest == 8.2
+pytest == 9.0.3
 port-for == 0.7.3
 mirakuru == 2.6.0
 psycopg == 3.0.0