add option to retry before failing

[rajatjindal]

Is your feature request related to a problem? Please describe.
during our testing we noticed sometimes a link returns 404 but on retrying a couple of times, it works ok. This create noise in ci pipelines.

Describe the solution you'd like
If we could retry a configured number of times automatically, it would help mitigate such intermittent issues

Describe alternatives you've considered

• tried option to retry using get if head fails
• custom script on top of blc to retry the links, using curl, that are reported as broken

Additional context
happy to provide more info if needed and also if this looks like an acceptable request, I am happy to try working on an implementation for this.