Add an unarchive activity

[djjuhasz]

Fixes #869

• Move archive extraction code from bundle activity to unarchive activity
• Add an fsutil.SetFileModes() method to recursively set file modes on a dir
• Add an unzipped bag testdata transfer

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 56.93431% with 59 lines in your changes are missing coverage. Please review.

Project coverage is 47.36%. Comparing base (620f36f) to head (60860d2).

Files	Patch %	Lines
internal/workflow/activities/unarchive.go	52.77%	17 Missing and 17 partials :warning:
internal/workflow/activities/bundle.go	40.00%	9 Missing and 3 partials :warning:
cmd/enduro-am-worker/main.go	0.00%	4 Missing :warning:
internal/fsutil/fsutil.go	63.63%	2 Missing and 2 partials :warning:
internal/workflow/processing.go	86.20%	2 Missing and 2 partials :warning:
cmd/enduro-a3m-worker/main.go	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #872 +/- ## ========================================== + Coverage 47.27% 47.36% +0.08% ========================================== Files 94 95 +1 Lines 5096 5133 +37 ========================================== + Hits 2409 2431 +22 - Misses 2466 2471 +5 - Partials 221 231 +10 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.