add a dryrun check (#300)

* add a dryrun check
* test
* add push
* add diff
* Rename
* Potential fix for code scanning alert no. 12: Workflow does not contain permissions

Signed-off-by: Marc Schöchlin <schoechlin@osb-alliance.com>
Signed-off-by: Kurt Garloff <kurt@garloff.de>
Co-authored-by: Kurt Garloff <kurt@garloff.de>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: 3 people

.github/workflows/dryrun-manage-github-repositories.yml

@@ -0,0 +1,53 @@
+---
+name: Test the management of github repositories
+permissions:
+  contents: read
+
+"on":
+  workflow_dispatch:
+  push:
+    branches-ignore:
+      - main
+  pull_request:
+    branches-ignore:
+      - main
+
+jobs:
+  manage-github-repositories:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check token permissions
+        run: |
+          if [ -z "${{ secrets[format('GHP_{0}', github.actor)] }}" ]; then
+            echo "No valid PAT found for ${{github.actor}}"
+            exit 1
+          else
+            echo "Found valid PAT for ${{github.actor}}"
+          fi
+
+      - name: Checkout repo
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      - name: Setup python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+          cache: 'pipenv'
+
+      - name: Install dependencies
+        run: |
+          python3 -m pip install --upgrade pip
+          python3 -m pip install pipenv wheel
+          pipenv install
+
+      - name: Install ansible collection
+        run: |
+          ansible-galaxy collection install git+https://github.com/opentelekomcloud/ansible-collection-gitcontrol.git
+
+      - name: Test the management of github repositories with Ansible
+        run: |
+          pipenv run ansible-playbook playbook.yaml -e api_token=$API_TOKEN --check --diff
+        env:
+          API_TOKEN: ${{ secrets[format('GHP_{0}', github.actor)] }}