ci: Add github workflow

Signed-off-by: Mike Sul <mike.sul@foundries.io>

.github/workflows/ci.yml

@@ -0,0 +1,16 @@
+name: sotactl CI tests
+on:
+  push:
+    pull_request:
+      branches:
+        - main
+
+jobs:
+  name: Build dev container and sota client
+  runs-on: ubuntu-latest
+  steps:
+    - uses: actions/checkout@v3
+    - name: build-dev-env
+      run: ./dev-shell.sh true 
+    - name: build sotactl
+      run: ./dev-shell.sh make