Update ci.yml

Author: dongjiang1989

.github/workflows/ci.yml

@@ -59,5 +59,5 @@ jobs:
           tags: ${{ matrix.image }}
       - name: Test ${{ matrix.name }}
         run: |
-          docker pull ${{ matrix.image}}:${{ matrix.name }}
+          docker pull ${{ matrix.image}}
           docker image inspect ${{ matrix.image}}