Don't depend to base image jobs.

Those jobs are not always in the workflow and that makes the workflow
invalid in those cases. Since the build and push already happens before
those jobs will use the newer base images anyway.

.gitlab-ci.yml

@@ -28,8 +28,6 @@ build-cgit:
   extends: .container-build
   variables:
     CONTEXT: cgit
-  needs:
-    - job: push-httpd
 
 push-cgit:
   extends: .container-push
@@ -140,8 +138,6 @@ build-webdav:
   extends: .container-build
   variables:
     CONTEXT: webdav
-  needs:
-    - job: push-httpd
 
 push-webdav:
   extends: .container-push