Fix typo and add rollout url for multi_store

config/feature_flags/development/use_multi_store.yml

 ---
 name: use_multi_store
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/73660
-rollout_issue_url:
+rollout_issue_url: https://gitlab.com/gitlab-com/gl-infra/scalability/-/issues/1429
 milestone: '14.5'
 type: development
 group: group::memory

lib/gitlab/redis/multi_store.rb

@@ -194,7 +194,7 @@ module Gitlab
 
       def increment_method_missing_count(command_name)
         @method_missing_counter ||= Gitlab::Metrics.counter(:gitlab_redis_multi_store_method_missing_total, 'Client side Redis MultiStore method missing')
-        @method_missing_counter.increment(command: command_name, innamece_name: instance_name)
+        @method_missing_counter.increment(command: command_name, instance_name: instance_name)
       end
 
       def validate_stores!