Cirrus CI: Fix build, and Add build verbosity

While here:
  - Relax resources, default is 2 CPUs and 4 GBs of memory
  - Use newer FreeBSD image

.cirrus.yml

@@ -1,16 +1,13 @@
 freebsd_instance:
-  image_family: freebsd-12-2-snap
-  cpu: 8
-  memory: 16G
+  image_family: freebsd-13-0-snap
 
 env:
   CIRRUS_CLONE_DEPTH: 1
 
 task:
-  only_if: $CIRRUS_BRANCH != 'svn_head'
   timeout_in: 10m
   install_script:
-    - pkg install -y gohugo python37 rubygem-asciidoctor rubygem-rouge
+    - pkg install -y docproj python3
   test_script:
-    - make
+    - make HUGO_ARGS="--verbose --debug --path-warnings"