ci: enable Vagrant-based testing using GitHub Actions

* Semi-automated using https://github.com/myii/ssf-formula/pull/304

kitchen.yml

@@ -324,6 +324,11 @@ suites:
       - arch-base-latest-3002-5-py3
       - gentoo-stage3-latest-3002-5-py3
       - gentoo-stage3-systemd-3002-5-py3
+      - freebsd-122-latest-py3
+      - freebsd-114-latest-py3
+      - windows-81-latest-py3
+      - windows-2019-latest-py3
+      - windows-2016-latest-py3
     provisioner:
       state_top:
         base:
@@ -363,6 +368,7 @@ suites:
       - arch-base-latest-3001-6-py3
       - gentoo-stage3-latest-3001-6-py3
       - gentoo-stage3-systemd-3001-6-py3
+      - openbsd-68-latest-py3
     provisioner:
       state_top:
         base: