[skip e2e]Add default value for schedule job (#17501)

Signed-off-by: Nzhuwenxing <wenxing.zhu@zilliz.com>

.github/workflows/pod-failure-chaos-test.yaml

@@ -27,6 +27,9 @@ jobs:
     
     steps:
       - name: Set env param
+        env:
+          DEFAULT_IMAGE_TAG: master-latest
+          DEFAULT_IMAGE_REPO: milvusdb/milvus-dev        
         run: |
           chaos_type=${{ matrix.chaos_type }}
           release="test"-${{ matrix.pod }}-${chaos_type/_/-}

.github/workflows/pod-kill-chaos-test-kafka-version.yaml

@@ -29,6 +29,7 @@ jobs:
       - name: Set env param
         env:
           DEFAULT_IMAGE_TAG: master-latest
+          DEFAULT_IMAGE_REPO: milvusdb/milvus-dev
         run: |
           echo "RELEASE=test-${{ matrix.pod }}-pod-kill" >> $GITHUB_ENV
           echo "IMAGE_REPO=${{ github.event.inputs.image_repo || env.DEFAULT_IMAGE_REPO}}" >> $GITHUB_ENV

.github/workflows/pod-kill-chaos-test.yaml

@@ -29,6 +29,7 @@ jobs:
       - name: Set env param
         env:
           DEFAULT_IMAGE_TAG: master-latest
+          DEFAULT_IMAGE_REPO: milvusdb/milvus-dev
         run: |
           echo "RELEASE=test-${{ matrix.pod }}-pod-kill" >> $GITHUB_ENV
           echo "IMAGE_REPO=${{ github.event.inputs.image_repo || env.DEFAULT_IMAGE_REPO}}" >> $GITHUB_ENV