Update dependency net.neoforged:neoforge to v20.6.121

gradle.properties

@@ -16,7 +16,7 @@ minecraft_version=1.20.6
 # as they do not follow standard versioning conventions.
 minecraft_version_range=[1.20.6,1.21)
 # The Neo version must agree with the Minecraft version to get a valid artifact
-neo_version=20.6.119
+neo_version=20.6.121
 # The Neo version range can use any version of Neo as bounds
 neo_version_range=[20.6,)
 # The loader version range can only use the major version of FML as bounds