Increase token limit for duplication check (#18783)
Fixup of #18763
Summary of the issue:
The default token limit for the ai-inference action is 200, but the average NVDA issue body is 500 tokens.
https://platform.openai.com/tokenizer
Description of development approach:
up token limit
The max for free tier is 8000 tokens per request.
https://docs.github.com/en/github-models/use-github-models/prototyping-with-ai-models#rate-limits
