build(deps-dev): bump pytest from 6.2.5 to 9.0.3 in /python/backup-s3 (#1273)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 6.2.5 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@6.2.5...9.0.3)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

python/backup-s3/requirements-dev.txt

@@ -1 +1 @@
-pytest==6.2.5
+pytest==9.0.3