Use ssh agent for auth.

Author: Martin Peck

.github/workflows/gitlab-mirror.yml

@@ -0,0 +1,21 @@
+name: GitLab Mirror
+
+on: 
+  - push
+  - delete
+
+jobs:
+  sync:
+    runs-on: ubuntu-latest
+    name: Git Repo Sync
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - uses: webfactory/ssh-agent@v0.9.0
+      with:
+        ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
+    - uses: wangchucheng/git-repo-sync@v0.1.0
+      with:
+        target-url: https://gitlab.com/meedan/pender.git/
+        target-username: sonoransun