switch selenium to standalone container

.gitlab-ci.yml

@@ -130,8 +130,12 @@ selenium:
   image: ${SELENIUM_IMAGE}
   variables:
     TEST_HELM_REPO: oci://registry.fakecake.org/infra/helm-charts/tt-rss
-    SELENIUM_GRID_ENDPOINT: http://selenium-hub.selenium-grid.svc.cluster.local:4444/wd/hub
+    SELENIUM_GRID_ENDPOINT: http://selenium:4444/wd/hub
+    FF_NETWORK_PER_BUILD: "true"
   extends: .integration-test
+  services:
+      - name: registry.fakecake.org/docker.io/selenium/standalone-chrome:4.32.0-20250515
+        alias: selenium
   script:
     - export K8S_NAMESPACE=$(kubectl get pods -o=custom-columns=NS:.metadata.namespace | tail -1)
     - |