python: introduce a python formatting CI check

Run the official psf/black formatter action in CI in order to check
that python scripts are formatted correctly. This check takes only
about 10 seconds and currently runs on only the two addr2line files.

.github/workflows/python-lint.yaml

@@ -0,0 +1,16 @@
+name: Python format
+
+on: [push, pull_request]
+
+jobs:
+  python-format:
+    name: Enforce python format
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: psf/[email protected]
+        with:
+            version: "24.8.0"
+            src: ./scripts
+            # override options so that we can specify only specific files for now
+            options: "--check --diff --include=.*addr2line.*"