Mark as officially supported on Python 3.12

Author: akx

README.rst

@@ -26,7 +26,7 @@ python-barcode
 There are no external dependencies when generating SVG files.
 Pillow is required for generating images (e.g.: PNGs).
 
-Support Python 3.8 to 3.11.
+Support Python 3.8 to 3.12.
 
 .. image:: example-ean13.png
   :target: https://github.com/WhyNotHugo/python-barcode

setup.py

@@ -29,6 +29,7 @@
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
         "Topic :: Multimedia :: Graphics",
         "Topic :: Software Development :: Libraries :: Python Modules",
     ],