Update MDK with new output from mod generator

Author: neoforge-mdk-automation[bot]

gradle.properties

@@ -14,7 +14,7 @@ minecraft_version=26.1.2
 # as they do not follow standard versioning conventions.
 minecraft_version_range=[26.1.2]
 # The Neo version must agree with the Minecraft version to get a valid artifact
-neo_version=26.1.2.27-beta
+neo_version=26.1.2.29-beta
 
 ## Mod Properties