Report rate-limiting errors clearly

[rauno56]

Is your feature request related to a problem? Please describe.

I suspect our releases here, are erroring because of GH rate limiting, but we have no way to certainly tell - I suspect rate-limiting errors are just reported as Server Errors.

Describe the solution you'd like

A perfect solution would include

1. warning about the rate-limit being close(GH has headers in the response to check for that),
2. error messages to indicate whether it was because of rate-limiting or not and
3. a way to avoid the rate-limiting by slowing the requests down or breaking the release up into parts.

Additional context

• Link to our failing CI run: https://github.com/open-telemetry/opentelemetry-js-contrib/runs/6486601021?check_suite_focus=true
• Docs about the headers: https://docs.github.com/en/rest/overview/resources-in-the-rest-api#checking-your-rate-limit-status
• General docs about rate limits: https://docs.github.com/en/developers/apps/building-github-apps/rate-limits-for-github-apps

[dermidgen]

Bump; this would really be nice. Large repos with many open PRs hit rate limits pretty quickly.