update mod version to 1.4.0

Author: OptiJava

gradle.properties

@@ -7,7 +7,7 @@ minecraft_version=1.17.1
 yarn_mappings=1.17.1+build.65
 loader_version=0.12.12
 # Mod Properties
-mod_version=1.3.1
+mod_version=1.4.0
 maven_group=io.github.optijava
 archives_base_name=opt-carpet-addition
 # Dependencies