fix(ksonnet): Do not generate rbac for consul if you are using memberlist (#12688)

Author: sentoz

production/ksonnet/loki/memberlist.libsonnet

@@ -160,4 +160,5 @@
   consul_deployment: if $._config.memberlist_ring_enabled && !$._config.multikv_migration_enabled && !$._config.multikv_migration_teardown then {} else super.consul_deployment,
   consul_service: if $._config.memberlist_ring_enabled && !$._config.multikv_migration_enabled && !$._config.multikv_migration_teardown then {} else super.consul_service,
   consul_config_map: if $._config.memberlist_ring_enabled && !$._config.multikv_migration_enabled && !$._config.multikv_migration_teardown then {} else super.consul_config_map,
+  consul_sidekick_rbac: if $._config.memberlist_ring_enabled && !$._config.multikv_migration_enabled && !$._config.multikv_migration_teardown then {} else super.consul_sidekick_rbac,
 }