install Ansible for VM tests

Signed-off-by: Martin Schurz <[email protected]>

.github/workflows/os_hardening_vm.yml

@@ -55,6 +55,18 @@ jobs:
           path: ansible_collections/devsec/hardening
           submodules: true
 
+      - name: Install dependencies
+        run: |
+          python -m pip install --no-cache-dir --upgrade pip
+          pip install -r requirements.txt
+        working-directory: ansible_collections/devsec/hardening
+
+      - name: Downgrade Ansible for Rocky 8 tests
+        run: |
+          pip install "ansible-core<2.17"
+        working-directory: ansible_collections/devsec/hardening
+        if: matrix.molecule_distro == 'eneric/rocky8' || matrix.molecule_distro == 'generic/opensuse15'
+
       - name: Update Vagrant Box
         run: |
           vagrant box update --box ${{ matrix.molecule_distro }} || true