Update cirros version

This is the next release in the 0.3.x stable series, containing a fix
for getting out of disk errors when cirros reads metadata from a
config-drive[0].

[0] https://bugs.launchpad.net/cirros/+bug/1808119

Change-Id: Id2f20ebafdd78c2dadf81b8f80f22e7bd6db7755
1 file changed