Update stubgen version

LuaLink/LuaStubGen@8cf39ed

Author: Saturn745

.github/workflows/main.yml

@@ -13,7 +13,7 @@ permissions:
   contents: write
 
 env:
-  STUBGEN_BUILD_NUM: 13
+  STUBGEN_BUILD_NUM: 14
   MINECRAFT_VERSION: 1.21.5
   ADDITIONAL_DEFINITION_URLS: |
     https://raw.githubusercontent.com/LuaLink/LuaLinkV2/master/src/main/resources/lua/script.lua