syz-manager: start VMs with a small delay
syz-manager: start VMs with a small delay

If lots of instances are started at the same time,
it slows down boot of every VMs and delays detection
of configuration bugs, etc. Start VMs with 10 sec delay,
so that checking happens faster.

google/syzkaller,google/syzkaller,google/syzkaller,google/syzkaller,xairy/syzkaller,google/syzkaller,google/syzkaller,xairy/syzkaller,google/syzkaller,xairy/syzkaller,xairy/syzkaller,xairy/syzkaller,xairy/syzkaller,xairy/syzkaller