fix minecraft_base_version declaration

Author: gliscowo

gradle.properties

@@ -2,7 +2,7 @@
 org.gradle.jvmargs=-Xmx1G
 # Fabric Properties
 # check these on https://fabricmc.net/develop
-minecraft_base_version=1.19,3
+minecraft_base_version=1.19.3
 minecraft_version=1.19.3
 yarn_mappings=1.19.3+build.4
 loader_version=0.14.12