Add CI

Signed-off-by: luke <luke.parkin@arm.com>

Author: Luke-Parkin

.github/workflows/ci.yml

@@ -0,0 +1,16 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: hadolint/hadolint-action@v3.1.0
+      with:
+        dockerfile: Dockerfile