update issue helper

Author: NullPointerException

.github/workflows/issue-topic-labeler.yml

@@ -126,8 +126,6 @@ jobs:
 
             const requestBody = {
               model,
-              temperature: 0,
-              max_completion_tokens: 24,
               messages: [
                 { role: 'system', content: systemPrompt },
                 { role: 'user', content: clip(issueText, 6000) },