pre-commit: update repos

Signed-off-by: Filipe Laíns <lains@riseup.net>

Author: FFY00

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v3.1.0
+  rev: v4.0.1
   hooks:
   - id: check-ast
   - id: check-builtin-literals
@@ -13,11 +13,11 @@ repos:
   - id: end-of-file-fixer
   - id: trailing-whitespace
 - repo: https://github.com/pre-commit/mirrors-isort
-  rev: master
+  rev: v5.9.1
   hooks:
   - id: isort
 - repo: https://gitlab.com/pycqa/flake8
-  rev: 3.8.3
+  rev: 3.9.2
   hooks:
   - id: flake8
     additional_dependencies: ['flake8-bugbear']