Fix release milvus helm chart bug (#219)

Signed-off-by: quicksilver <zhifeng.zhang@zilliz.com>

.github/workflows/release.yml

@@ -29,7 +29,7 @@ jobs:
         run: |
           helm repo add kafkaesque https://helm.kafkaesque.io
           helm repo add bitnami https://charts.bitnami.com/bitnami
-          helm repo add minio https://helm.min.io/
+          helm repo add milvus https://milvus-io.github.io/milvus-helm
 
       - name: Run chart-releaser
         uses: helm/chart-releaser-action@v1.2.1