collab: Add billing thresholds to request overage subscription items (#29738)

This PR adds billing thresholds of the unit equivalent of $20 for model
request overages.

Release Notes:

- N/A
57610c9935Marshall Bowers committed on 5/1/2025, 4:10:06 PM· committed by GitHubparent5bf1b4f
2 files changedLine totals unavailable