fix assistant name label

apps/app/src/server/service/openai/assistant/assistant.ts

@@ -35,7 +35,7 @@ const findAssistantByName = async(assistantName: string): Promise<OpenAI.Beta.As
 
 const getOrCreateAssistant = async(type: AssistantType): Promise<OpenAI.Beta.Assistant> => {
   const appSiteUrl = configManager.getConfig('crowi', 'app:siteUrl');
-  const assistantName = `GROWI ${type} Assistant for ${appSiteUrl} ${configManager.getConfig('crowi', 'openai:assistantNameSuffix')}}`;
+  const assistantName = `GROWI ${type} Assistant for ${appSiteUrl} ${configManager.getConfig('crowi', 'openai:assistantNameSuffix')}`;
 
   const assistantOnRemote = await findAssistantByName(assistantName);
   if (assistantOnRemote != null) {