rgw: wakeup lease_cr after abort on bucket sync disable

rgw: wakeup lease_cr after abort on bucket sync disable

the 'bucket sync disable' tests were causing data sync to lag behind
because these calls to lease_cr->abort() were still waiting for the
RGWContinuousLeaseCR to wake up from its sleep. added data sync
checkpoints to each 'bucket sync disable' test to make sure that data
sync catches up before running other tests, as this was causing failures
in the new 'datalog autotrim' test

Signed-off-by: Casey Bodley <cbodley@redhat.com>