Fix base version

Signed-off-by: Noaaan <noaaan@hotmail.com>

Author: Noaaan

gradle.properties

@@ -2,7 +2,7 @@
 org.gradle.jvmargs=-Xmx1G
 # Fabric Properties
 # check these on https://fabricmc.net/develop
-minecraft_base_version=1.20.4
+minecraft_base_version=1.20.3
 minecraft_version=1.20.4
 yarn_mappings=1.20.4+build.3
 loader_version=0.15.3