Merge pull request #4096 from AkihiroSuda/fix-4094

CI: FreeBSD: fix "No packages available to install matching ..."

Author: AkihiroSuda

Vagrantfile.freebsd

@@ -36,6 +36,10 @@ Vagrant.configure("2") do |config|
     sh.inline = <<~SHELL
         #!/usr/bin/env bash
         set -eux -o pipefail
+        freebsd-version -kru
+        # switching to "release_2" ensures compatibility with the current Vagrant box
+        # https://github.com/moby/buildkit/pull/5893
+        sed -i '' 's/latest/release_2/' /usr/local/etc/pkg/repos/FreeBSD.conf
         # `pkg install go` still installs Go 1.20 (March 2024)
         pkg install -y go122 containerd runj
         ln -s go122 /usr/local/bin/go