quote query arguments (#1433)

script/entrypoint

@@ -28,7 +28,7 @@ elif [ "$1" = "query" ]; then
     #     query [options] FILE
     # we dispatch to a script that inspects metadata and emulates the following call:
     #     bq query [options] < FILE 
-    exec script/run_query --query_file="${@: -1}" ${@:1:$#-1}
+    exec script/run_query --query_file="${@: -1}" "${@:1:$#-1}"
 elif [ "$XCOM_PUSH" = "true" ]; then
     # KubernetesPodOperator will extract the contents of /airflow/xcom/return.json as an xcom
     # if the xcom_push parameter is true