The previous delay of 1500ms was causing some users to hit the API rate limits. This doesn't normally happen with a single deployment, but it can happen with several concurrent deployments (for example a monorepo with many projects).
We don't need to be polling so often, so this PR changed the polling delay to the following:
- During 0s-15s: check every 1 second
- During 15s-60s: check every 5 seconds
- During 1m-5m: check every 15 seconds
- During 5m-10m: check every 30 seconds
