[pre-commit.ci] pre-commit autoupdate

updates:
- https://github.com/myint/autoflake → https://github.com/PyCQA/autoflake
- [github.com/PyCQA/autoflake: v1.5.3 → v1.6.0](https://github.com/PyCQA/autoflake/compare/v1.5.3...v1.6.0)
- [github.com/asottile/pyupgrade: v2.37.3 → v2.38.0](https://github.com/asottile/pyupgrade/compare/v2.37.3...v2.38.0)

.pre-commit-config.yaml

@@ -20,8 +20,8 @@ repos:
     -   id: debug-statements
         exclude: _pytest/(debugging|hookspec).py
         language_version: python3
--   repo: https://github.com/myint/autoflake
-    rev: v1.5.3
+-   repo: https://github.com/PyCQA/autoflake
+    rev: v1.6.0
     hooks:
     -   id: autoflake
         name: autoflake
@@ -42,7 +42,7 @@ repos:
     -   id: reorder-python-imports
         args: ['--application-directories=.:src', --py37-plus]
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v2.37.3
+    rev: v2.38.0
     hooks:
     -   id: pyupgrade
         args: [--py37-plus]