type fix revert

Signed-off-by: Sai Shree Pradhan <saishree.pradhan@databricks.com>

Author: saishreeeee

src/databricks/sql/backend/databricks_client.py

@@ -79,7 +79,7 @@ def execute_command(
         lz4_compression: bool,
         cursor: Cursor,
         use_cloud_fetch: bool,
-        parameters: Union[List[ttypes.TSparkParameter], List[Dict[str, Any]]],
+        parameters: List[ttypes.TSparkParameter],
         async_op: bool,
         enforce_embedded_schema_correctness: bool,
         row_limit: Optional[int] = None,