[ansible-test] first attempt at freebsd 12.2

Change:
- Add freebsd/12.2 remote target

Test Plan:
- ci_complete

Tickets:
- Fixes #72366

Signed-off-by: Rick Elrod <rick@elrod.me>

changelogs/fragments/ansible-test-freebsd12-2.yml

@@ -0,0 +1,2 @@
+minor_changes:
+  - ansible-test - Now supports freebsd/12.2 remote (https://github.com/ansible/ansible/issues/72366).

test/lib/ansible_test/_data/completion/remote.txt

@@ -1,5 +1,6 @@
 freebsd/11.1 python=2.7,3.6 python_dir=/usr/local/bin
 freebsd/12.1 python=3.6,2.7 python_dir=/usr/local/bin
+freebsd/12.2 python=3.7,2.7 python_dir=/usr/local/bin
 osx/10.11 python=2.7 python_dir=/usr/local/bin
 macos/10.15 python=3.8 python_dir=/usr/local/bin
 rhel/7.6 python=2.7