deployment: add graphite ci-optimizations

Author: idan-starkware

.github/workflows/hybrid_system_test.yaml

@@ -37,8 +37,22 @@ concurrency:
   cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
+  # https://graphite.com/docs/stacking-and-ci
+  optimize_ci:
+    runs-on: namespace-profile-small-ubuntu-24-04-amd64
+    outputs:
+      skip: ${{ steps.check_skip.outputs.skip }}
+    steps:
+      - name: Optimize CI
+        id: check_skip
+        uses: withgraphite/graphite-ci-action@main
+        with:
+          graphite_token: ${{ secrets.GRAPHITE_CI_OPTIMIZER_TOKEN }}
+
   check-system-test-trigger:
     runs-on: namespace-profile-small-ubuntu-24-04-amd64
+    needs: optimize_ci
+    if: needs.optimize_ci.outputs.skip == 'false'
     outputs:
       should_run: ${{ github.event_name == 'workflow_dispatch' && 'true' || steps.system_check.outputs.should_run }}
     steps: