Bump pytest from 8.0.0 to 9.0.3 in /.tools/readmes

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.0.0 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@8.0.0...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]

.tools/readmes/requirements_freeze.txt

@@ -20,7 +20,7 @@ pluggy==1.5.0
 pycodestyle==2.11.1
 pyflakes==3.1.0
 Pygments==2.19.1
-pytest==8.0.0
+pytest==9.0.3
 PyYAML==6.0.1
 requests==2.33.0
 rich==13.9.4