[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/pre-commit/pre-commit-hooks: v3.4.0 → v4.0.1](pre-commit/pre-commit-hooks@v3.4.0...v4.0.1)
- [github.com/psf/black: 20.8b1 → 21.10b0](psf/black@20.8b1...21.10b0)
- [github.com/pre-commit/mirrors-prettier: v2.3.0 → v2.4.1](pre-commit/mirrors-prettier@v2.3.0...v2.4.1)

.pre-commit-config.yaml

@@ -3,7 +3,7 @@ default_language_version:
 
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v3.4.0
+    rev: v4.0.1
     hooks:
       # list of supported hooks: https://pre-commit.com/hooks.html
       - id: trailing-whitespace
@@ -14,14 +14,14 @@ repos:
 
   # python code formatting
   - repo: https://github.com/psf/black
-    rev: 20.8b1
+    rev: 21.10b0
     hooks:
       - id: black
         args: [--line-length, "100"]
 
   # yaml formatting
   - repo: https://github.com/pre-commit/mirrors-prettier
-    rev: v2.3.0
+    rev: v2.4.1
     hooks:
       - id: prettier
         types: [yaml]