Merge branch '391745-handle-relative-timestamps' into 'master'

Handle streamed relative timestamps on blame page

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/120460



Merged-by: David Pisek <dpisek@gitlab.com>
Approved-by: Stanislav Lashmanov <slashmanov@gitlab.com>
Approved-by: David Pisek <dpisek@gitlab.com>
Reviewed-by: Jacques Erasmus <jerasmus@gitlab.com>
Reviewed-by: David Pisek <dpisek@gitlab.com>
Reviewed-by: Stanislav Lashmanov <slashmanov@gitlab.com>
Co-authored-by: Jacques <jerasmus@gitlab.com>