CT: run external stack

.github/workflows/tests.yaml

@@ -13,6 +13,7 @@ on:
 
 env:
   SO_VERSION: v1.1.0-87fffca-202404110321
+  FIXTURENET_ETH_STACKS_REF: main
 
 jobs:
   test:
@@ -60,11 +61,18 @@ jobs:
           ref: ${{ env.SO_VERSION }}
           path: ./stack-orchestrator
       - run: pip install ./stack-orchestrator
+      - name: Clone fixturenet stack repo
+        uses: actions/checkout@v4
+        with:
+          repository: cerc-io/fixturenet-eth-stacks
+          ref: ${{ env.FIXTURENET_ETH_STACKS_REF }}
+          path: ./fixturenet-eth-stacks
+          progress: false
 
       - name: Run testnet stack
         env:
           CERC_GO_AUTH_TOKEN: ${{ secrets.CICD_REPO_TOKEN }}
-        run: ./scripts/integration-setup.sh
+        run: ./scripts/run-test-stack.sh ./fixturenet-eth-stacks/stack-orchestrator/stacks/fixturenet-plugeth
       - name: Run server
         env:
           ETH_FORWARD_ETH_CALLS: false