CI: Update vmactions/freebsd-vm

Use latest version since the previous version now do cyclic reboots.
The action now runs on Ubuntu as recommended.

.github/workflows/build.yml

@@ -112,13 +112,13 @@ jobs:
         run: $GITHUB_WORKSPACE/test.sh
 
   freebsd:
-    runs-on: macos-12
+    runs-on: ubuntu-22.04
     name:  FreeBSD
     steps:
       - uses: actions/checkout@v3
 
       - name: Build in FreeBSD
-        uses: vmactions/freebsd-vm@v0
+        uses: vmactions/freebsd-vm@v1
         with:
           prepare: pkg install -y gmake cmake
           run: |