Update astral-sh/ruff-action action to v4

Author: renovate[bot]

.github/workflows/lint.yml

@@ -15,4 +15,4 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: astral-sh/ruff-action@v3
+      - uses: astral-sh/ruff-action@v4.0.0