fixing clang-related compile issue in aron

source/RobotAPI/libraries/aron/core/data/variant/detail/PrimitiveVariant.h

@@ -45,7 +45,7 @@ namespace armarx::aron::data::detail
         using ValueType = ValueT;
 
     public:
-        using Base::SpecializedVariantBase;
+        using typename Base::SpecializedVariantBase;
 
         PrimitiveVariant(const ValueT& v,
                          const data::Descriptor descriptor,