docker: Add sysstat and strace to vitess/lite.
docker: Add sysstat and strace to vitess/lite.

These are useful for diagnostics on running containers.

Signed-off-by: Anthony Yeh <1cdc736ba6fd89dd9b69239aea62ddb9fd1482b1@planetscale.com>

vitessio/vitess,mahak/vitess,vitessio/vitess,tinyspeck/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,tinyspeck/vitess,tinyspeck/vitess,tinyspeck/vitess,vitessio/vitess,mahak/vitess,tinyspeck/vitess,mahak/vitess,vitessio/vitess,mahak/vitess,tinyspeck/vitess,mahak/vitess,mahak/vitess,tinyspeck/vitess,vitessio/vitess,mahak/vitess