cubicweb-worker #4878598 worker_remove_stale_workers can race against worker_ping [validation pending]

one second of leeway is not enough

prioritynormal
typebug
done in3.0.5
load1.000
load left0.000
closed by#ab3035991a3d Make worker_remove_stale_workers less aggressive
patchMake worker_remove_stale_workers less aggressive [applied]