Fixed MyPy errors introduced by new mysql-connector-python

The new (8.0.32) mysql-connector-python introduces more typing and
failed our MySQL provider mypy tests (because we are handling
also other mysql clients)

Adding some excludes and handling None better for description
solves the problem

airflow/providers/apache/hive/transfers/mysql_to_hive.py

@@ -143,12 +143,13 @@ def execute(self, context: Context):
                 encoding="utf-8",
             )
             field_dict = OrderedDict()
-            for field in cursor.description:
-                field_dict[field[0]] = self.type_map(field[1])
+            if cursor.description is not None:
+                for field in cursor.description:
+                    field_dict[field[0]] = self.type_map(field[1])
             csv_writer.writerows(cursor)
             f.flush()
             cursor.close()
-            conn.close()
+            conn.close()  # type: ignore[misc]
             self.log.info("Loading file into Hive")
             hive.load_file(
                 f.name,

airflow/providers/mysql/hooks/mysql.py

@@ -78,7 +78,7 @@ def set_autocommit(self, conn: MySQLConnectionTypes, autocommit: bool) -> None:
         if hasattr(conn.__class__, "autocommit") and isinstance(conn.__class__.autocommit, property):
             conn.autocommit = autocommit
         else:
-            conn.autocommit(autocommit)
+            conn.autocommit(autocommit)  # type: ignore[operator]
 
     def get_autocommit(self, conn: MySQLConnectionTypes) -> bool:
         """
@@ -93,7 +93,7 @@ def get_autocommit(self, conn: MySQLConnectionTypes) -> bool:
         if hasattr(conn.__class__, "autocommit") and isinstance(conn.__class__.autocommit, property):
             return conn.autocommit
         else:
-            return conn.get_autocommit()
+            return conn.get_autocommit()  # type: ignore[union-attr]
 
     def _get_conn_config_mysql_client(self, conn: Connection) -> dict:
         conn_config = {
@@ -199,7 +199,7 @@ def bulk_load(self, table: str, tmp_file: str) -> None:
             """
         )
         conn.commit()
-        conn.close()
+        conn.close()  # type: ignore[misc]
 
     def bulk_dump(self, table: str, tmp_file: str) -> None:
         """Dump a database table into a tab-delimited file."""
@@ -212,7 +212,7 @@ def bulk_dump(self, table: str, tmp_file: str) -> None:
             """
         )
         conn.commit()
-        conn.close()
+        conn.close()  # type: ignore[misc]
 
     @staticmethod
     def _serialize_cell(cell: object, conn: Connection | None = None) -> Any:
@@ -283,4 +283,4 @@ def bulk_load_custom(
 
         cursor.close()
         conn.commit()
-        conn.close()
+        conn.close()  # type: ignore[misc]