Add CI workflow to check that sketches compile (#36)

Author: stefanotorneo

.github/workflows/check-sketches-deps.yml

@@ -0,0 +1,18 @@
+name: Compile sketches to verify dependencies
+on:
+  pull_request:
+permissions:
+  contents: read
+
+jobs:
+  compile-sketches:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Verify sketches
+        uses: arduino/compile-sketches@v1
+        with:
+          fqbn: "arduino:zephyr:unoq"
+          sketch-paths: "./examples"