Autofix Rubocop Style/Lambda (#23696)

lib/cli.rb

@@ -121,7 +121,7 @@ module Mastodon
 
       prompt.warn('Do NOT interrupt this process...')
 
-      delete_account = ->(account) do
+      delete_account = lambda do |account|
         payload = ActiveModelSerializers::SerializableResource.new(
           account,
           serializer: ActivityPub::DeleteActorSerializer,

lib/mastodon/domains_cli.rb

@@ -139,7 +139,7 @@ module Mastodon
 
       pool = Concurrent::ThreadPoolExecutor.new(min_threads: 0, max_threads: options[:concurrency], idletime: 10, auto_terminate: true, max_queue: 0)
 
-      work_unit = ->(domain) do
+      work_unit = lambda do |domain|
         next if stats.key?(domain)
         next if options[:exclude_suspended] && domain.match?(blocked_domains)