Updating pre-commit hooks

Author: sanders41

.pre-commit-config.yaml

@@ -12,13 +12,13 @@ repos:
     - id: isort
       additional_dependencies: [toml]
   - repo: https://github.com/psf/black
-    rev: 21.5b2
+    rev: 21.6b0
     hooks:
     - id: black
       language_version: python3
       args: [--line-length=100]
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.901
+    rev: v0.902
     hooks:
     - id: mypy
       additional_dependencies: [types-aiofiles]