Bump pytest from 8.4.2 to 9.0.1 (#62)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.4.2 to 9.0.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.4.2...9.0.1)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
 slack-bolt==1.27.0
-pytest==8.4.2
+pytest==9.0.1
 flake8==7.3.0
 black==25.9.0