sync: add continuwuity-trigger.yaml from wavecat repo

.forgejo/workflows/continuwuity-trigger.yaml

@@ -0,0 +1,18 @@
+name: Trigger CI Pipeline
+
+on:
+  push:
+    branches:
+      - deployment
+
+jobs:
+  dispatch:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Trigger build in ci-pipelines repo
+        run: |
+          curl -s -X POST \
+            "http://forgejo.tooling.svc.cluster.local:3000/api/v1/repos/ember/ci-pipelines/dispatches" \
+            -H "Authorization: token ${{ secrets.CI_DISPATCH_TOKEN }}" \
+            -H "Content-Type: application/json" \
+            -d '{"event_type": "continuwuity-push", "client_payload": {"ref": "${{ github.ref }}", "sha": "${{ github.sha }}"}}'