Add ruff scans, exclude tests dir and ignore B904

.github/workflows/ruff.yaml

@@ -0,0 +1,11 @@
+name: Ruff
+on: [ push, pull_request ]
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: chartboost/ruff-action@v1
+        with:
+          args: check --select B --exclude host/ha/tests --ignore B904
+          src: "./"