Merge pull request 'Revert linting to Alpine' (#28) from revert-linting-to-alpine into main

Reviewed-on: #28

.woodpecker/lint.yml

@@ -2,9 +2,9 @@ when:
   branch: main
 steps:
   - name: lint
-    image: python:3-slim
+    image: python:3-alpine
     commands:
       - python -m pip install --upgrade pip
       - python -m pip install -r requirements.txt
       - python -m pip install ruff
-      - ruff check .
+      - ruff check .