[pre-commit.ci] pre-commit autoupdate (#2054)

updates:
- [github.com/asottile/pyupgrade: v2.13.0 → v2.14.0](asottile/pyupgrade@v2.13.0...v2.14.0)
- [github.com/psf/black: 21.4b0 → 21.4b2](psf/black@21.4b0...21.4b2)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -14,15 +14,15 @@ repos:
       - id: end-of-file-fixer
       - id: trailing-whitespace
   - repo: https://github.com/asottile/pyupgrade
-    rev: v2.13.0
+    rev: v2.14.0
     hooks:
       - id: pyupgrade
   - repo: https://github.com/PyCQA/isort
     rev: 5.8.0
     hooks:
       - id: isort
   - repo: https://github.com/psf/black
-    rev: 21.4b0
+    rev: 21.4b2
     hooks:
       - id: black
         args: