compositor: Bring back the old timestamp format for the log scope

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Reported-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2 jobs for fix-align-stamp in 1 minute and 9 seconds (queued for 1 minute and 37 seconds)
Status Job ID Name Coverage
  Container Prep
passed #475125
container_prep

00:00:20

 
  Build
passed #475126
build-native-meson

00:00:49