Add ruff format check. Fix format warnings

Author: amacati

.github/workflows/ruff.yml

@@ -1,8 +1,16 @@
 name: Ruff
 on: [ push, pull_request ]
 jobs:
-  ruff:
+  ruff-check:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: astral-sh/ruff-action@v1
+      - uses: astral-sh/ruff-action@v1
+
+  ruff-format:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: astral-sh/ruff-action@v1
+        with:
+          args: "format --check --diff"

pyproject.toml

@@ -64,6 +64,9 @@ ignore = ["ANN401"]
 fixable = ["ALL"]
 unfixable = []
 
+[tool.ruff.lint.isort]  # Prevent ruff from reporting conflicting settings with isort
+split-on-trailing-comma = false
+
 [tool.ruff.lint.per-file-ignores]
 "tests/*" = ["D100", "D103", "D104"]
 "examples/*" = ["D100", "D103"]