cirrus: Update FreeBSD versions.
Updated 12.2 to 12.3 and 11.4 to 13.0.
'pkg update' fails on 12.2. 11.4 has reached end of life.
@@ -2,8 +2,8 @@ freebsd_build_task:
freebsd_instance:
matrix:
- image_family: freebsd-12-2-snap
- image_family: freebsd-11-4-snap
+ image_family: freebsd-12-3-snap
+ image_family: freebsd-13-0-snap
cpu: 4
memory: 4G
