Serialize jira response to avoid field explosion in logs

ee/app/services/jira_connect/sync_service.rb

@@ -22,10 +22,11 @@ module JiraConnect
 
     def log_response(response)
       message = {
+        message: 'response from jira dev_info api',
         integration: 'JiraConnect',
         project_id: project.id,
         project_path: project.full_path,
-        response: response
+        jira_response: response&.to_json
       }
 
       if response && response['errorMessages']

ee/spec/services/jira_connect/sync_service_spec.rb

@@ -31,10 +31,11 @@ describe JiraConnect::SyncService do
     def expect_log(type, message)
       expect(Gitlab::ProjectServiceLogger)
         .to receive(type).with(
+          message: 'response from jira dev_info api',
           integration: 'JiraConnect',
           project_id: project.id,
           project_path: project.full_path,
-          response: message
+          jira_response: message&.to_json
         )
     end