deployment: add graphite ci-optimizations

Author: idan-starkware

.github/workflows/sequencer_cdk8s-test.yml

@@ -16,8 +16,22 @@ on:
       - "deployments/sequencer/**"
 
 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 }}
+
   prepare:
     runs-on: ubuntu-24.04
+    needs: optimize_ci
+    if: needs.optimize_ci.outputs.skip == 'false'
     env:
       cluster: test
       namespace: test