ci: rework bsd workflows

Author: Mizux

.github/workflows/amd64_bsd_cmake.yml

@@ -0,0 +1,44 @@
+# ref: https://github.com/actions/runner-images
+name: amd64 BSD CMake
+
+on: [push, pull_request, workflow_dispatch]
+
+concurrency:
+  group: ${{github.workflow}}-${{github.ref}}
+  cancel-in-progress: true
+
+# Building using the github runner environement directly.
+jobs:
+  vagrant:
+    strategy:
+      matrix:
+        distro: [
+          freebsd,
+          hardenedbsd,
+          netbsd,
+          openbsd,
+        ]
+      fail-fast: false
+    name: amd64•${{matrix.distro}}•CMake
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Virtualbox install
+        run: |
+          sudo apt update -q
+          sudo apt install -yq virtualbox
+          virtualbox --help
+      - name: Vagrant install
+        run: |
+          sudo apt update -q
+          wget https://releases.hashicorp.com/vagrant/2.4.7/vagrant_2.4.7-1_amd64.deb
+          sudo apt install -y ./vagrant_2.4.7-1_amd64.deb
+          vagrant --version
+      - name: Build
+        run: make --directory=ci ${{matrix_distro}}_build
+
+  amd64_bsd_cmake:
+    runs-on: ubuntu-latest
+    needs: vagrant
+    steps:
+      - uses: actions/checkout@v4