Attempt running tests under freebsd and openbsd vms

.github/workflows/test.yaml

@@ -6,7 +6,7 @@ jobs:
     strategy:
       matrix:
         go-version: [1.15.x, 1.16.x]
-        os: [ubuntu-latest, macos-latest, freebsd-latest, openbsd-latest]
+        os: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
@@ -18,3 +18,25 @@ jobs:
 
       - name: Run tests
         run: go test ./...
+
+  test-bsds:
+    runs-on: macos-10.15
+    strategy:
+      matrix:
+        os:
+          - name: freebsd
+            version: 12.2
+          - name: openbsd
+            version: 6.8
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install go
+        uses: actions/setup-go@v2
+        with:
+          go-version: "^1"
+
+      - name: Run tests
+        run: go test ./...
+