Add replay to the edg-docker-test tool []

[wchilders-nvidia]

This exposes the --replay flag to edg-docker-test to allow users to update recordings more easily when using edg-docker-test.

For instance, if you run:

edg-docker-test --posture=extensive
edg-test-run-diff

and conclude all of the changes are good, you can then run:

edg-docker-test --posture=extensive --replay unexpected -W

to rerun and update only the tests with changes, after this change.

Reviewed internally by: @daveedvdv-nvidia

[mborland]

In replay mode, edgy ignores --run-timestamp per it's help txt so the replay output goes to tests/runs//replays/N. edg-docker-test still makes a new timestamp and points AcknowlEDG at it. Locally I ran:

exec edgy --run-timestamp=2026.10.08-13.17.06 --config="edg_x86_64_cp,edg_x86_64" --replay=regress                                                                                                                                                                                                               
  exec edgy-review --root='/edg/workspace/tests/runs/2026.10.08-13.17.06' 

edgy-review prints Path does not exist: … and exits 1, and run_acknowledg then calls sys.exit(1).

The fix is a one liner which I have attached as a patch file. It simply skips trying to open the non-existent directory.

replay-acknowledg.patch