Merge branch 'azure-1.11' into azure-2.0

Author: michiya

sql_server/pyodbc/features.py

@@ -12,6 +12,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     has_real_datatype = True
     has_select_for_update = True
     has_select_for_update_nowait = True
+    has_select_for_update_skip_locked = True
     has_zoneinfo_database = False
     ignores_table_name_case = True
     ignores_quoted_identifier_case = True