ci: fix black version

MrKevinWeiss · MrKevinWeiss · commit 0257d803b83d · 2023-06-07T13:16:47.000+02:00
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
@@ -41,7 +41,7 @@ repos:
   - id: isort
 
 - repo: https://github.com/psf/black
-  rev: stable
+  rev: 23.3.0
   hooks:
   - id: black
     language_version: python3
