Add option to delete logs after configurable period

I'd like to take a crack at this.

@svendecabooter Would you like to have tests for this feature?

I'm done for now with my contribution. There is some half-baked validation of the duration string because I noticed it will be better with https://www.drupal.org/node/3373502 → which will only be available with Drupal 10.2 and I didn't want to raise the core version requirement. I did my best to document this in the code.

There are no tests.

Tests would be nice, but no requirement for me...

Thanks a lot for the nice work!
Doing some final testing now, and if everything is OK, will add this to a new release.

Automatically closed - issue fixed for 2 weeks with no activity.

svendecabooter → closed merge request !3