style: enforcing mypy typing for connectors (#9824)

Co-authored-by: John Bodley <john.bodley@airbnb.com>

superset/sql_parse.py

@@ -15,11 +15,11 @@
 # specific language governing permissions and limitations
 # under the License.
 import logging
-from dataclasses import dataclass
 from typing import List, Optional, Set
 from urllib import parse
 
 import sqlparse
+from dataclasses import dataclass
 from sqlparse.sql import Identifier, IdentifierList, remove_quotes, Token, TokenList
 from sqlparse.tokens import Keyword, Name, Punctuation, String, Whitespace
 from sqlparse.utils import imt