[PIP-156][ci] trying to fix the yaml format error from pulsar-ci.yaml

.github/workflows/pulsar-ci.yaml

@@ -475,7 +475,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java: [ '8', '11', '17' ]
+        java: [ 8, 11, 17 ]
 
     steps:
       - name: checkout
@@ -542,10 +542,9 @@ jobs:
         run: |
           ./build/run_integration_group.sh SHADE_BUILD
 
-      - uses: actions/checkout@v3
       - name: Run integration test group Shade on java '${{ matrix.java }}'
-        if: ${{ needs.changed_files_job.outputs.docs_only != 'true' }}
         uses: actions/setup-java@v3
+        if: ${{ needs.changed_files_job.outputs.docs_only != 'true' }}
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.java }}