Add support for April24 API version

Author: lizkenyon

CHANGELOG

@@ -1,6 +1,7 @@
 == Unreleased
 
 - Remove `cgi` import to avoid triggering a `DeprecationWarning` on Python 3.11.
+- Update API version with 2024-04 release.
 
 == Version 12.4.0
 

shopify/api_version.py

@@ -37,6 +37,7 @@ def define_known_versions(cls):
         cls.define_version(Release("2023-07"))
         cls.define_version(Release("2023-10"))
         cls.define_version(Release("2024-01"))
+        cls.define_version(Release("2024-04"))
 
     @classmethod
     def clear_defined_versions(cls):