bump black version

rocky · rocky · commit eb030675b976 · 2021-06-25T00:58:22.000-04:00
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
@@ -5,7 +5,7 @@ repos:
     - id: debug-statements
     - id: end-of-file-fixer
 -   repo: https://github.com/psf/black
-    rev: 19.3b0
+    rev: 20.8b1
     hooks:
     - id: black
       language_version: python3
