Bump ansible from 2.8.6 to 2.8.8 in /ansible/configs/ocp4-cluster/files (#1191)

* Bump ansible from 2.8.6 to 2.8.8 in /ansible/configs/ocp4-cluster/files

Bumps [ansible](https://github.com/ansible/ansible) from 2.8.6 to 2.8.8.
- [Release notes](https://github.com/ansible/ansible/releases)
- [Commits](https://github.com/ansible/ansible/compare/v2.8.6...v2.8.8)

Signed-off-by: dependabot[bot] <support@github.com>

* Update requirements_k8s.txt

Co-authored-by: Wolfgang Kulhanek <wkulhanek@users.noreply.github.com>