Adopt new rules from black upgrade (#14809)

awx/main/migrations/_inventory_source_vars.py

@@ -76,7 +76,7 @@ class azure_rm(PluginFileInjector):
         user_filters = []
         old_filterables = [
             ('resource_groups', 'resource_group'),
-            ('tags', 'tags')
+            ('tags', 'tags'),
             # locations / location would be an entry
             # but this would conflict with source_regions
         ]

awx/main/models/mixins.py

@@ -527,7 +527,6 @@ class CustomVirtualEnvMixin(models.Model):
 
 
 class RelatedJobsMixin(object):
-
     """
     This method is intended to be overwritten.
     Called by get_active_jobs()

awx/sso/backends.py

@@ -68,7 +68,6 @@ class LDAPSettings(BaseLDAPSettings):
 
 
 class LDAPBackend(BaseLDAPBackend):
-
     """
     Custom LDAP backend for AWX.
     """