refactor(cursor, setinputsize): use named arguments

Author: Brooke-white

redshift_connector/cursor.py

@@ -314,7 +314,7 @@ def __iter__(self: "Cursor") -> "Cursor":
         """
         return self
 
-    def setinputsizes(self: "Cursor", sizes):
+    def setinputsizes(self: "Cursor", *sizes):
         """This method is part of the `DBAPI 2.0 specification
         <http://www.python.org/dev/peps/pep-0249/>`_, however, it is not
         implemented.