Add CI workflow

Author: mdheller

.github/workflows/ci.yml

@@ -0,0 +1,28 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  validate:
+    name: Validate BootReleaseSet contracts
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+      - name: Validate examples
+        run: python src/sourceos_boot/validate_boot_release_set.py examples/*.json
+      - name: Run tests
+        run: |
+          python -m pip install --upgrade pip pytest
+          python -m pytest