chore(deps): Update dependency net.neoforged:neoforge to v21.11.21-beta

Author: renovate[bot]

gradle/libs.versions.toml

@@ -17,7 +17,7 @@ minecraft = "1.21.11"
 parchment = "1.21.11+build.2"
 vineflower = "1.11.2"
 spotless = "8.0.0"
-neoforge = "21.11.0-beta"
+neoforge = "21.11.21-beta"
 neoform = "1.21.11-20251209.172050"
 
 [libraries]