Merge branch 'next-34932/fix-ci-build-in-saas-branches' into 'trunk'

NEXT-34932 - Fix ci build in saas branches

See merge request shopware/6/product/platform!13571

(cherry picked from commit 222025b)

907996c NEXT-34932 - Fix ci build in saas branches

.gitlab/stages/11-build.yml

@@ -159,7 +159,7 @@ build image:
   variables:
     GIT_STRATEGY: none
   rules:
-    - if: '$CI_COMMIT_BRANCH && $CI_COMMIT_REF_PROTECTED == "true"'
+    - if: '$CI_COMMIT_BRANCH && $CI_COMMIT_REF_PROTECTED == "true" && $CI_COMMIT_BRANCH !~ /^saas\/.*/'
       variables:
         EXTRA_DEV_BUILD_TAGS: "${CI_COMMIT_BRANCH}"
     - when: always