Add codeberg mirror sync workflow

.github/workflows/codeberg-mirror.yml

@@ -0,0 +1,18 @@
+name: Sync to Codeberg
+on:
+    push:
+    workflow_dispatch:
+    schedule:
+        - cron: "0 */6 * * *"
+
+jobs:
+    codeberg:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v3
+              with:
+                  fetch-depth: 0
+            - uses: pixta-dev/repository-mirroring-action@674e65a7d483ca28dafaacba0d07351bdcc8bd75 # v1.1.1
+              with:
+                  target_repo_url: "git@codeberg.org:Ven/cord.git"
+                  ssh_private_key: ${{ secrets.CODEBERG_SSH_PRIVATE_KEY }}