devutils: add script for checking patch correctness (#29)

.github/workflows/lint.yml

@@ -0,0 +1,16 @@
+name: Check patch series correctness
+
+on: [push, pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-python@v5
+      with:
+        python-version: '3.13' 
+    - run: python3 ./devutils/lint.py