Fix python test style

Author: Hor911

ydb/tests/fq/s3/test_formats.py

@@ -105,12 +105,12 @@ def test_btc(self, kikimr, s3, client, yq_version):
         self.create_bucket_and_upload_file("btct.parquet", s3, kikimr)
         client.create_storage_connection("btct", "fbucket")
 
-        sql = f'''
+        sql = '''
             PRAGMA s3.UseBlocksSource="true";
             SELECT
                 *
             FROM btct.`btct.parquet`
-            WITH (format=`parquet`, 
+            WITH (format=`parquet`,
                 SCHEMA=(
                     hash STRING,
                     version INT64,
@@ -136,7 +136,6 @@ def test_btc(self, kikimr, s3, client, yq_version):
         assert "Error while reading file btct.parquet" in issues[0].message
         assert "File contains LIST field outputs and can\'t be parsed" in issues[0].issues[0].message
 
-
     @yq_all
     @pytest.mark.parametrize("client", [{"folder_id": "my_folder"}], indirect=True)
     def test_invalid_format(self, kikimr, s3, client):