simply github workflow since we migrate most of CI steps to prow (#4299)

.github/workflows/build-multiarch.yaml

@@ -1,18 +1,19 @@
-name: BuildMultiArch
+name: BuildContainerImage
 
 on:
   push:
     branches:
       - 'master'
-      - 'release*'
+      - 'release-*'
     tags:
       - 'v*'
   pull_request:
     branches:
       - 'master'
-      - 'release*'
+      - 'release-*'
 
 jobs:
+  if: github.event_name == 'push'
   build:
     name: Build
     runs-on: ubuntu-latest
@@ -36,7 +37,6 @@ jobs:
         env:
           DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
           DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
-        if: github.event_name == 'push'
         run: |
           echo ${{ secrets.DOCKER_PASSWORD }} | docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
-          REPO=kubespheredev TAG="${GITHUB_REF#refs/*/}-multiarch" make container-cross-push
+          REPO=kubespheredev TAG="${GITHUB_REF#refs/*/}" make container-cross-push