Replace black by ruff format

Author: ticosax

.github/workflows/test_suite.yml

@@ -72,7 +72,7 @@ jobs:
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v5
 
-  lint:
+  lint: # redundant with pre-commit-ci, but we want to make the linters a part of strict status checks.
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4

.pre-commit-config.yaml

@@ -18,19 +18,7 @@ repos:
       - id: markdownlint
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: 'v0.8.6'
+    rev: "v0.8.6"
     hooks:
       - id: ruff
-  - repo: https://github.com/psf/black
-    rev: 24.10.0
-    hooks:
-      - id: black
-        args:
-          - "--line-length"
-          - "119"
-        exclude: ^django_fsm_log/migrations|^docs/
-  - repo: https://github.com/adamchainz/django-upgrade
-    rev: "1.22.2"
-    hooks:
-    -   id: django-upgrade
-        args: [--target-version, "3.2"]
+      - id: ruff-format