ModificationsNotifier: Send notifications every 1s

5 jobs for update_notifier_period in 17 minutes and 30 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #288203
amd64 debian
asan-ubsan

00:11:18

passed #288230
amd64 debian
linux

00:05:57

passed #288201
win32
win32

00:10:03

passed #288202
win64
win64

00:11:32

failed #288200
amd64 debian
linux

00:09:12