fix kubectl delete in ci

.gitlab-ci.yml

@@ -78,8 +78,8 @@ Deploy to Kubernetes:
     - cd k8s
     - sed -i "s|##IMAGETAG##|${CI_COMMIT_REF_NAME}|" deployment.yml
     # A kovetkezo ket sor egy undorito workaround a mindig valtozo init kontenerek miatt letrejovo es beakado replicasetek miatt. Pls replace, ha van jobb otlet.
-    - kubectl delete deployment apache-static || true
-    - kubectl delete deployment kszkepzes-backend || true
+    - kubectl delete deployment -l app=apache-kszkepzes || true
+    - kubectl delete deployment -l app=kszkepzes-backend || true
     - kubectl apply -f deployment.yml
   only:
     - tags