cirrus: Switch the FreeBSD 12.x build to 12.1 and drop 10.4.

Upstream support for 10.4 ended a year ago, and it looks like the image
is now gone, too.
[skip ci]

diff --git a/.cirrus.yml b/.cirrus.yml
index 8d982d4..aaa3221 100644 (file)
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -5,12 +5,11 @@ task:
   name: FreeBSD
   freebsd_instance:
     matrix:
-      # There isn't a stable 13.0 image yet (2019-10)
+      # There isn't a stable 13.0 image yet (2019-12)
       image_family: freebsd-13-0-snap
-      image_family: freebsd-12-0
+      image_family: freebsd-12-1
       # The stable 11.3 image causes "Agent is not responding" so use a snapshot
       image_family: freebsd-11-3-snap
-      image_family: freebsd-10-4
 
   env:
     # Set to 10 instead of 1 to avoid problems when new commits are submitted