fix credential vending document

.github/workflows/docker-image.yml

@@ -33,7 +33,7 @@ on:
         required: true
         type: string
       latest:
-        description: 'Choose whether to use the latest version'
+        description: 'whether publish the image to docker latest tag, only used for offical release, don't use it for RC'
         required: false
         type: boolean
         default: false
@@ -120,8 +120,10 @@ jobs:
           sudo rm -rf /usr/local/lib/android
           sudo rm -rf /opt/hostedtoolcache/CodeQL
           
-          if [[ "${image_type}" == "gravitino" || "${image_type}" == "iceberg-rest-server" ]]; then
-            ./dev/docker/build-docker.sh --platform all --type ${image_type} --image ${image_name} --tag ${{ github.event.inputs.version }} --latest
+          if [[ "${image_type}" == "gravitino" || "${image_type}" == "iceberg-rest-server" || "${{ github.event.inputs.latest }}" == "true" ]]; then
+	    echo "latest"
+            #./dev/docker/build-docker.sh --platform all --type ${image_type} --image ${image_name} --tag ${{ github.event.inputs.version }} --latest
           else
-            ./dev/docker/build-docker.sh --platform all --type ${image_type} --image ${image_name} --tag "${tag_name}-${{ github.event.inputs.version }}"
+	    echo "not latest"
+            #./dev/docker/build-docker.sh --platform all --type ${image_type} --image ${image_name} --tag "${tag_name}-${{ github.event.inputs.version }}"
           fi