build: fabric 1.21.9-pre4

Author: ishland

gradle.properties

@@ -6,8 +6,8 @@ org.gradle.parallel=true
 # check these on https://fabricmc.net/develop
 #
 # Also don't forget to gen mappings in genMappings.sh
-minecraft_version=1.21.9-pre3
-yarn_mappings=1.21.9-pre3+build.3
+minecraft_version=1.21.9-pre4
+yarn_mappings=1.21.9-pre4+build.2
 loader_version=0.17.2
 
 # Mod Properties