copyblocks: add option to bypass duration check for no-compact blocks

[andyasp]

What this PR does

Adds a flag to bypass the block duration check in copyblocks for blocks marked as no-compact.

It's a common pattern to use min-block-duration with the intent of targeting blocks that are fully compacted. This can miss blocks that are marked as no-compact that have a shorter duration. This flag makes it easier to not miss those blocks.

Which issue(s) this PR fixes or relates to

Fixes N/A

Checklist

• [ ] Tests updated.
• [x] Documentation added.
• [x] CHANGELOG.md updated - the order of entries should be [CHANGE], [FEATURE], [ENHANCEMENT], [BUGFIX].
• [ ] about-versioning.md updated with experimental features.

[narqo]

The CHANGELOG has just been cut to prepare for the next release. Please rebase main and eventually move the CHANGELOG entry added / updated in this PR to the top of the CHANGELOG.md document. Thanks!

[andyasp]

I struggled with the name as well. Open to ideas for it and I'll hold off while trying to think of something myself. -disable-no-compact-validation doesn't quite work because this is only for the duration check specifically.