Add automatic labeling bot

[poweiw]

Adds an automatic labelling bot using LLM whenever an issue is raised. See an example issue at https://github.com/poweiw/TensorRT/issues/4 and its run log at https://github.com/poweiw/TensorRT/actions/runs/15433437593

The goggles_action is still private. Please contact @poweiw for access.

This bot uses label descriptions defined in TRT repo, so ensure the labels descriptions are clear and instructive. Note that this bot DOES NOT auto-triage, so module owners still have to check their modules.

[akhilg-nv]

How is the LLM being queried? It seems to me like the labels on your sample issue don't necessarily match the existing pool of labels we have in the main repo, and I think we'd like it to do that for consistency and perhaps later auto-assigning based on the labels added.

[poweiw]

@akhilg-nv The labels are queried by the time the action was triggered. The labels are inconsistent to the labels we have in the main repo because the issue was raised in my fork. See the difference between labels in upstream and labels in my fork. Sent you the invitation to checkout the labeling logic

[poweiw]

Thanks, can we add a failsafe to make sure triaged label isn't applied incorrectly in the validation step? LGTM

Fixed in e74434b