Triage issues using AI

What does this MR do and why?

Triage issues (add labels) using AI

This is especially relevant now we've deprecated Tanuki Stan gitlab-org/ml-ops/tanuki-stan!46 (comment 2308605025)

Changelog: feature

Expected impact & dry-runs

https://gitlab.com/gitlab-org/quality/triage-ops/-/jobs/9110236280

Action items

• If adding environment variables for reactive processors, update config/triage-web.yaml and .gitlab/ci/triage-web.yml
• (If applicable) Add documentation to the handbook pages for Triage Operations =>
• (If applicable) Identify the affected groups and how to communicate to them:
  • /cc @person_or_group =>
  • Relevant Slack channels =>
  • Engineering week-in-review