Bump ansible-core in /.github/workflows/requirements

Bumps [ansible-core](https://github.com/ansible/ansible) from 2.11.5 to 2.11.6.
- [Release notes](https://github.com/ansible/ansible/releases)
- [Commits](ansible/ansible@v2.11.5...v2.11.6)

---
updated-dependencies:
- dependency-name: ansible-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/requirements/requirements_galaxy.txt

@@ -1 +1 @@
-ansible-core==2.11.5
+ansible-core==2.11.6

.github/workflows/requirements/requirements_molecule.txt

@@ -1,4 +1,4 @@
-ansible-core==2.11.5
+ansible-core==2.11.6
 Jinja2==3.0.2
 ansible-lint==5.2.0
 yamllint==1.26.3