Merge branch 'noc-1860' into 'master'

#1860 Add forget-history to gridvcs command.

See merge request !6388

(cherry picked from commit 6e545cb1)

9dd4bbcf Add forget-history to gridvcs command.
9378ec5b Fix param docs.
694fdc51 Add before-days.
772a8bb8 Fix typo.
37b4d7f6 Fix flake.
6 jobs for !6499 with cherry-pick-6e545cb1 in 26 minutes (queued for 5 seconds)
latest merge request