don't make non-forge jars valid mods (fixes cabaletta#2124)

Author: ZacSharp

build.gradle

@@ -117,6 +117,12 @@ javadoc {
 
 jar {
     from sourceSets.launch.output, sourceSets.api.output
+
+    if (!getProject().hasProperty("baritone.forge_build")) {
+        exclude "**/BaritoneForgeModXD.class"
+        exclude "**/mods.toml"
+    }
+
     preserveFileTimestamps = false
     reproducibleFileOrder = true