Added github action to miror and sync with gitlab

.github/workflows/automated_testing.yml

@@ -0,0 +1,11 @@
+name: Automated testing
+
+on: [push]
+
+jobs:
+  call-testing-workflow:
+    uses: digitalutsc/reusable_workflows/.github/workflows/ci-testing.yml@main
+    with:
+      module_name: drupal_libcal
+      composer_name: digitalutsc/drupal_libcal
+      test_suite: functional

.github/workflows/gitlab_mirroring.yml

@@ -0,0 +1,19 @@
+name: Mirror and run GitLab CI
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Mirror + trigger CI
+      uses: SvanBoxel/gitlab-mirror-and-ci-action@master
+      with:
+        args: "https://git.drupalcode.org/project/drupal_libcal"
+      env:
+        GITLAB_HOSTNAME: "git.drupal.org"
+        GITLAB_USERNAME: "project_89613_bot"
+        GITLAB_PASSWORD: ${{ secrets.GITLAB_PASSWORD }}
+        GITLAB_PROJECT_ID: "89613"
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}