Try enabling CI on NetBSD.

Author: yugr

.github/workflows/ci.yml

@@ -24,6 +24,15 @@ jobs:
     - uses: actions/checkout@v2
     - name: Run tests
       run: scripts/travis.sh
+  NetBSD:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Run tests
+      uses: vmactions/netbsd-vm@v1
+      with:
+        usesh: true
+        run: scripts/travis.sh
   CSA:
     runs-on: ubuntu-latest
     env: