[py]: Bump black version for linting dependencies

Author: symonk

py/tox.ini

@@ -36,7 +36,7 @@ force_single_line = True
 skip_install = true
 deps =
   isort==5.12.0
-  black==23.7.0
+  black==23.9.1
   flake8==6.1.0
   flake8-typing-imports==1.14.0
   docformatter==1.7.5
@@ -55,7 +55,7 @@ commands =
 skip_install = true
 deps =
   isort==5.12.0
-  black==23.7.0
+  black==23.9.1
   flake8==6.1.0
   flake8-typing-imports==1.14.0
   docformatter==1.7.5