Update dependency net.neoforged:neoforge to v20.4.237 (#87)

Co-authored-by: neoforged-renovate[bot] <174042230+neoforged-renovate[bot]@users.noreply.github.com>

gradle.properties

@@ -16,7 +16,7 @@ minecraft_version=1.20.4
 # as they do not follow standard versioning conventions.
 minecraft_version_range=[1.20.4,1.21)
 # The Neo version must agree with the Minecraft version to get a valid artifact
-neo_version=20.4.147-beta
+neo_version=20.4.237
 # The Neo version range can use any version of Neo as bounds
 neo_version_range=[20.4,)
 # The loader version range can only use the major version of FML as bounds