fix model mode bugs

Author: Datu1213

entrypoint.sh

@@ -1,9 +1,9 @@
 #!/bin/bash
 
 if [[ $MLFLOW_MODEL_URI_MODE='alias' ]]; then
-  export MLFLOW_MODEL_URI='models:/$MLFLOW_MODEL_NAME@$MLFLOW_MODEL_ALIAS'
+  export MLFLOW_MODEL_URI="models:/$MLFLOW_MODEL_NAME@$MLFLOW_MODEL_ALIAS"
 else
-  export MLFLOW_MODEL_URI='models:/$MLFLOW_MODEL_NAME/$MLFLOW_MODEL_VERSION'
+  export MLFLOW_MODEL_URI="models:/$MLFLOW_MODEL_NAME/$MLFLOW_MODEL_VERSION"
 fi
 
 if [[ $MLFLOW_MODE = 'server' ]]; then