Fix lint

Signed-off-by: Kevin Zhang <kzhang@tecton.ai>

Author: kevjumba

sdk/python/feast/infra/offline_stores/contrib/spark_offline_store/spark_source.py

@@ -177,8 +177,7 @@ def get_table_query_string(self) -> str:
         """Returns a string that can directly be used to reference this table in SQL"""
         if self.table:
             # Backticks make sure that spark sql knows this a table reference.
-            # return f"`{self.table}`"
-            table = '.'.join(map(lambda x: f'`{x}`', self.table.split('.')))
+            table = ".".join([f"`{x}`" for x in self.table.split(".")])
             return table
         if self.query:
             return f"({self.query})"