MNT: replace flake8 + isort with ruff

.pre-commit-config.yaml

@@ -2,7 +2,7 @@
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.4.0
+    rev: v5.0.0
     hooks:
     -   id: no-commit-to-branch
     -   id: trailing-whitespace
@@ -23,12 +23,11 @@ repos:
     -   id: shellcheck
         args: [-x]  # allow source files outside of checked files
 
--   repo: https://github.com/pycqa/flake8.git
-    rev: 6.0.0
+-   repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.11.6
     hooks:
-    -   id: flake8
-
--   repo: https://github.com/timothycrosley/isort
-    rev: 5.11.5
-    hooks:
-    -   id: isort
+      # Run the linter.
+      - id: ruff
+        args: [ --fix ]
+      # Run the formatter.
+      - id: ruff-format

ruff.toml

@@ -0,0 +1,9 @@
+exclude = [
+    ".git",
+]
+
+line-length = 88
+
+[lint]
+select = ["C", "E", "F", "W", "B", "I"]
+ignore = ["C901"]