added mirroring to bitbucket workflow

Author: agriggio

.github/workflows/mirror.yml

@@ -0,0 +1,17 @@
+name: Mirroring
+
+on: [push, delete]
+
+jobs:
+  to_bitbucket:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - uses: pixta-dev/repository-mirroring-action@v1
+        with:
+          target_repo_url:
+            git@bitbucket.org:agriggio/art-ctlscripts.git
+          ssh_private_key:
+            ${{ secrets.BITBUCKET_SSH_KEY }}