Pass user rather than user ID to SpamActionService

app/services/concerns/spam_check_methods.rb

@@ -30,7 +30,7 @@ module SpamCheckMethods
       api: @api,
       recaptcha_verified: @recaptcha_verified,
       spam_log_id: @spam_log_id,
-      user_id: user.id)
+      user: user)
   end
   # rubocop:enable Gitlab/ModuleWithInstanceVariables
 end

app/services/spam/spam_action_service.rb

@@ -22,11 +22,11 @@ module Spam
       end
     end
 
-    def execute(api: false, recaptcha_verified:, spam_log_id:, user_id:)
+    def execute(api: false, recaptcha_verified:, spam_log_id:, user:)
       if recaptcha_verified
         # If it's a request which is already verified through reCAPTCHA,
         # update the spam log accordingly.
-        SpamLog.verify_recaptcha!(user_id: user_id, id: spam_log_id)
+        SpamLog.verify_recaptcha!(user_id: user.id, id: spam_log_id)
       else
         return unless request
         return unless check_for_spam?

spec/services/spam/spam_action_service_spec.rb

@@ -78,7 +78,7 @@ describe Spam::SpamActionService do
 
     subject do
       described_service = described_class.new(spammable: issue, request: request)
-      described_service.execute(user_id: user.id, api: nil, recaptcha_verified: recaptcha_verified, spam_log_id: existing_spam_log.id)
+      described_service.execute(user: user, api: nil, recaptcha_verified: recaptcha_verified, spam_log_id: existing_spam_log.id)
     end
 
     before do