Custom retry blocks to add user declared steps before retrying

[jsebastian-acosta]

Describe the enhancement

At this moment the retry blocks only works specifying a pattern to make terragrunt retry when the error is matched, It would be useful to include custom steps just before retrying to give the users a way to fix the errors at runtime

Additional context

The problem that I have faced is that usually got some errors related to corrupted tfstate file "Failed to load state: invalid syntax: unexpected end of JSON input" and the retry logic doesn't seem to work to fix the problem, seems like before retrying it's needed to clean some cache stuff to fix it.

[yhakbar]

@jsebastian-acosta have you tried using an error_hook?