Fix header include

Harrm · Harrm · commit f5efd37fb74c · 2021-11-04T19:08:07.000+03:00
diff --git a/include/scale/enum_traits.hpp b/include/scale/enum_traits.hpp
@@ -9,6 +9,7 @@
 #include <type_traits>
 
 #include <scale/outcome/outcome_throw.hpp>
+#include <scale/scale_error.hpp>
 
 namespace scale {
 
