Instead of formatting changes, fail the test if code needs formatting

There were some bugs with the autoformatter, so instead now the user
have to manually format their code before committing their changes.

If not, the github action will fail.

Author: c-salomonsen

.github/workflows/format.yml

@@ -2,13 +2,9 @@ name: Format
 
 on:
   push:
-    branches:
-      - main
     paths:
       - 'utils/**'
   pull_request:
-    branches:
-      - main
     paths:
       - 'utils/**'
 
@@ -30,18 +26,10 @@ jobs:
         run: |
           pip install ruff isort
 
-      - name: Run Ruff formatter
+      - name: Run Ruff check
         run: |
-          ruff format utils/
+          ruff check utils/
 
-      - name: Run isort
+      - name: Run isort check
         run: |
-          isort utils/
-
-      - name: Commit and push changes
-        run: |
-          git config --global user.name "github-actions[bot]"
-          git config --global user.email "github-actions[bot]@users.noreply.github.com"
-          git add utils/
-          git commit -m "Auto-format: Applied ruff format and isort" || exit 0
-          git push
+          isort --check-only utils/