ci: fix lint task

Default lint task only lints staged files.

Author: maurosilber

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
       - uses: prefix-dev/[email protected]
         with:
           environments: lint
-      - run: pixi run --environment lint lint
+      - run: pixi run --environment lint lint --all-files --show-diff-on-failure
 
   test-linux:
     runs-on: ubuntu-latest