Add 1.21.11 support

Author: mrmelon54

versionProperties/1.21.11.properties

@@ -0,0 +1,23 @@
+# 1.21.11 version
+java_version=21
+minecraft_version=1.21.11
+parchment_version=1.21.11:2025.12.20
+compatible_minecraft_versions=["1.21.11"]
+accessWidenerVersion=1_21_11
+builds_for=fabric,neoforge
+
+architectury_group=dev.architectury
+architectury_version=19.0.1
+
+# Fabric
+fabric_loader_version=0.18.4
+fabric_api_version=0.140.2+1.21.11
+
+# NeoForge
+neoforge_version=21.11.13-beta
+
+# Libraries
+cloth_config_version=21.11.153
+modmenu_version=17.0.0-beta.1
+
+mcVer=1.21.11