update .gitlab-ci.yml

.gitlab-ci.yml

@@ -35,26 +35,20 @@ unit tests:
     - amd64-docker
   before_script: []
 
-ppc64le:
-  extends: .docker-build
-  stage: build
-  tags:
-    - ppc64le-docker
-
 amd64:
   extends: .docker-build
   stage: build
   tags:
     - amd64-docker
 
-local:
-  extends: .manifest
+manifest:
+  extends: .manifest-amd64
   stage: manifest
 
 cloud:
   extends: .manifest-cloud
   stage: manifest
 
-nexus:
+release:
   extends: .manifest-release
   stage: manifest