set port forward and dex test login in one step

Signed-off-by: Tom Zaspel <40226087+tzabbi@users.noreply.github.com>

.github/workflows/dex_test.yaml

@@ -34,13 +34,10 @@ jobs:
         kustomize build overlays/istio | kubectl apply -f -
         kubectl wait --for=condition=Ready pods --all --all-namespaces --timeout 180s
 
-    - name: port forward
+    - name: test dex login
       run: |
         ingress_gateway_service=$(kubectl get svc --namespace istio-system --selector="app=istio-ingressgateway" --output jsonpath='{.items[0].metadata.name}')
         nohup kubectl port-forward --namespace istio-system svc/${ingress_gateway_service} 8080:80 &
         while ! curl localhost:8080; do echo waiting for port-forwarding; sleep 1; done; echo port-forwarding ready
-
-    - name: test dex login
-      run: |
         pip3 install requests
         ./tests/gh-actions/test_dex_login.py