created workflow to push to mirror repo on ebrains

.github/workflows/ebrains-push.yml

+name: Mirror to EBRAINS
+
+on:
+  push:
+    branches: [ master ]
+
+jobs:
+  sync_to_ebrains:
+    runs-on: ubuntu-latest
+    if: ${{ github.repository_owner == 'didi-hou' }}
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+        with:
+          egress-policy: audit
+          disable-telemetry: true
+
+      - name: sycnmaster
+        uses: wei/git-sync@55c6b63b4f21607da0e9877ca9b4d11a29fc6d83
+        with:
+          source_repo: "INM-6/multi-area-model"
+          source_branch: "master"
+          destination_repo: "https://ghpusher:${{ secrets.EBRAINS_GITLAB_ACCESS_TOKEN }}@gitlab.ebrains.eu/didi-hou/multi-area-model.git"
+          destination_branch: "master"
+      - name: synctags
+        uses: wei/git-sync@55c6b63b4f21607da0e9877ca9b4d11a29fc6d83
+        with:
+          source_repo: "INM-6/multi-area-model"
+          source_branch: "refs/tags/*"
+          destination_repo: "https://ghpusher:${{ secrets.EBRAINS_GITLAB_ACCESS_TOKEN }}@gitlab.ebrains.eu/didi-hou/multi-area-model.git"
+          destination_branch: "refs/tags/*"
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