fix: Fixed compile error using IL2CPP builds with new [Rpc] attribute#2824

ShadauxCat merged 2 commits intorelease/1.8.1Unity-Technologies/com.unity.netcode.gameobjects:release/1.8.1from

fix/ILPP_RPC_type_errorUnity-Technologies/com.unity.netcode.gameobjects:fix/ILPP_RPC_type_errorCopy head branch name to clipboard