Correct gitlab-ci.yml

Our runners don't build untagged jobs anymore.

.gitlab-ci.yml

@@ -3,6 +3,8 @@ stages:
   - deploy
 
 kaniko:                                                                                                                           
+  tags:                                                                                                                               
+    - docker
   stage: build
   image:
     name: gcr.io/kaniko-project/executor:debug
@@ -12,6 +14,8 @@ kaniko:
     - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination $CI_REGISTRY_IMAGE:latest --destination $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA --destination $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
 
 kubernetes:                                                                                                                           
+  tags:                                                                                                                               
+    - turniere-deploy
   stage: deploy
   only:
     - master