Update black version (#704)

Author: stephanie-eng

.pre-commit-config.yaml

@@ -33,7 +33,7 @@ repos:
       - id: trailing-whitespace
 
   - repo: https://github.com/psf/black
-    rev: 20.8b1
+    rev: 22.3.0
     hooks:
       - id: black
 

conf.py

@@ -10,7 +10,7 @@
 # The suffix of source filenames.
 source_suffix = ".rst"
 
-project = u"moveit_tutorials"
+project = "moveit_tutorials"
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the