Update conf.py to version 2.3

docs/source/conf.py

@@ -75,17 +75,17 @@
 
 # General information about the project.
 project = 'SHARPy'
-copyright = '2023, LoCA Lab ICL'
+copyright = '2024, LoCA Lab ICL'
 author = 'Aeroelastics Lab, Imperial College London'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
 # The short X.Y version.
-version = '2.2'
+version = '2.3'
 # The full version, including alpha/beta/rc tags.
-release = '2.2'
+release = '2.3'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.