Update pre-commit hooks to fix flake8 on Python 3.12+

Old flake8 6.0.0 pyflakes referenced ast.Str (removed in 3.12),
crashing the pre-commit CI. Bump hooks: pre-commit-hooks v6.0.0,
black 26.5.1, isort 8.0.1, flake8 7.3.0.

Author: timonweb

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.4.0
+    rev: v6.0.0
     hooks:
       - id: check-added-large-files
       - id: check-ast
@@ -16,17 +16,17 @@ repos:
       - id: mixed-line-ending
       - id: requirements-txt-fixer
   - repo: https://github.com/psf/black
-    rev: 23.3.0
+    rev: 26.5.1
     hooks:
       - id: black
         args: [ --line-length=119 ]
   - repo: https://github.com/pycqa/isort
-    rev: 5.12.0
+    rev: 8.0.1
     hooks:
       - id: isort
         args: [ "--profile", "black", "--filter-files" ]
   - repo: https://github.com/PyCQA/flake8
-    rev: 6.0.0
+    rev: 7.3.0
     hooks:
       - id: flake8
         additional_dependencies: