ci: dispatch event

.github/workflows/dispatch-event.yml

@@ -0,0 +1,22 @@
+name: dispatch-event
+
+on:
+  workflow_dispatch:
+
+env:
+  PAYLOAD_PUSH_MAIN_EVENT: payload-push-main-event
+
+jobs:
+  repository-dispatch:
+    name: Repository dispatch
+    runs-on: ubuntu-latest
+    steps:
+      - name: Dispatch event
+        if: ${{ github.event_name == 'workflow_dispatch' }}
+        uses: peter-evans/repository-dispatch@v3
+        with:
+          token: ${{ secrets.PAYLOAD_REPOSITORY_DISPATCH }}
+          repository: ${{ secrets.REMOTE_REPOSITORY }}
+          event-type: ${{ env.PAYLOAD_PUSH_MAIN_EVENT }}
+          client-payload: '{"event": {"head_commit": {"id": "${{ env.GITHUB_SHA }}"}}}' # mocked for testing
+          # client-payload: '{"event": ${{ toJson(github.event) }}}'