fix(Lua): Correctly handle non-container Out-params in function calls

When a UFunction with an Out-parameter that is not a Struct or Array
is called from Lua, a placeholder table is expected on the stack.

The previous logic did not pop this placeholder table from the stack,
leading to stack desynchronization on subsequent parameter processing
and causing a crash or incorrect behavior.

This commit adds the necessary  to ensure the
stack is correctly handled, resolving the issue.

Author: HryshcIlya

UE4SS/src/LuaType/LuaUObject.cpp

@@ -199,6 +199,7 @@ namespace RC::LuaType
 
                         if (!param_next->IsA<Unreal::FStructProperty>() && !param_next->IsA<Unreal::FArrayProperty>())
                         {
+                            lua.discard_value();
                             continue;
                         }
                     }

assets/Changelog.md

@@ -314,6 +314,8 @@ names. ([UE4SS #827](https://github.com/UE4SS-RE/RE-UE4SS/pull/827)
 
 Fixed an error with Object properties causing stack corruption. ([UE4SS #939](https://github.com/UE4SS-RE/RE-UE4SS/pull/939)
 
+Fixed a stack corruption issue when calling UFunctions from Lua with `Out` parameters that were not of type Struct or Array. ([UE4SS #942](https://github.com/UE4SS-RE/RE-UE4SS/pull/942))
+
 ### C++ API 
 Fixed a crash caused by a race condition enabled by C++ mods using `UE4SS_ENABLE_IMGUI` in their constructor ([UE4SS #481](https://github.com/UE4SS-RE/RE-UE4SS/pull/481))