Maintenance: Switch back to (new) stable selenium images.

.gitlab/ci/base.yml

@@ -91,11 +91,11 @@
   alias: elasticsearch
 
 .docker_selenium_chrome: &docker_selenium_chrome
-  name: $CI_REGISTRY/docker/zammad-selenium-chrome:4
+  name: $CI_REGISTRY/docker/zammad-selenium-chrome:stable
   alias: selenium-chrome
 
 .docker_selenium_firefox: &docker_selenium_firefox
-  name: $CI_REGISTRY/docker/zammad-selenium-firefox:4
+  name: $CI_REGISTRY/docker/zammad-selenium-firefox:stable
   alias: selenium-firefox
 
 .docker_imap: &docker_imap

.gitlab/ci/browser-integration/otrs_chrome.yml

@@ -9,7 +9,7 @@ otrs_chrome:
   services:
     - name: $CI_REGISTRY/docker/zammad-postgresql:stable
       alias: postgresql
-    - name: $CI_REGISTRY/docker/zammad-selenium-chrome:4
+    - name: $CI_REGISTRY/docker/zammad-selenium-chrome:stable
       alias: selenium-chrome
     - name: $CI_REGISTRY/docker/zammad-ci-otrsimport-db:otrs6
       alias: zammad-ci-otrsimport-db