build: fix version, oops

Author: desht

build.gradle

@@ -29,7 +29,7 @@ allprojects {
     apply plugin: "maven-publish"
     apply from: "https://raw.githubusercontent.com/FTBTeam/mods-meta/main/gradle/git-md-changelog.gradle"
 
-    version = project.version
+    version = project.mod_version
     group = project.maven_group
     archivesBaseName = project.archives_base_name