Fix for #8115

Increase boot disk size per #8115 where monitors shut down due to
/ being full on vm machines.

Signed-off-by: Sandon Van Ness <sandon@inktank.com>
Bump psutil version requirement

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>
task/: add tests for ec and rep mark_unfound_lost delete

Signed-off-by: Samuel Just <sam.just@inktank.com>
Don't push last_in_suite jobs to paddles

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>
Fix Cluster.__repr__()

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>
Allow scrubbing while thrashing

Added ability to implement scrubbing while thrashing
(scrub_interval in config can be set to an interval
similar to how clean_interval is set).  Defaults to 0,
which indicates that no scrubbing will take place.

Fixes: 7199
Signed-off-by: Warren Usui <warren.usui@inktank.com>