quality-of-service.rb does too much in one go

[yegor256]

Currently, the quality-of-service.rb script tries to collect all possible data in one step. This inevitably leads to GitHub API blockage -- they simply don't like us making so many requests in such a short period of time.

One solution would be to make long pauses between steps inside the quality-of-service.rb script, such as 5-10 seconds.

Another solution would be to split the process into a few steps: on each step we collect certain metric, add it to the existing fact, and quit. On the next run of the script, we collect another metric, and so on.

Maybe, we can use both approaches.