ci: add workflow to sync gitlab mirror

.github/workflows/gitlab-mirror.yml

@@ -0,0 +1,26 @@
+name: Sync GitLab mirror
+
+on:
+  push:
+    branches: [ "main" , "dev" ]
+
+jobs:
+  mirror:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Mirror to GitLab
+        env:
+          GITLAB_URL: https://gitlab.com/iahmadgad/termux-clock.git
+          GITLAB_TOKEN: ${{ secrets.GITLAB_TOKEN }}
+          BRANCH: ${{ github.ref_name }}
+        run: |
+          git remote add gitlab "$GITLAB_URL"
+          git config --global user.name "GitHub Actions"
+          git config --global user.email "[email protected]"
+          git push https://oauth2:$GITLAB_TOKEN@$GITLAB_URL $BRANCH --force