The bucket sync checkpoint confirms the bucket's data sync markers are
caught up at the RADOS level, but the reading RGW can briefly serve 404
for the freshly synced object until it refreshes its view. The post-
checkpoint read was given only a 60s budget, which is occasionally too
short; give it 180s so a transient RGW serving lag does not fail the
test.
Signed-off-by: Joshua Hoblitt <josh@hoblitt.com>
(cherry picked from commit e9b59476a6)