🐛 fix zipkin exporter compile failure (#899)

Author: esigo

exporters/zipkin/include/opentelemetry/exporters/zipkin/recordable.h

@@ -40,7 +40,8 @@ class Recordable final : public sdk::trace::Recordable
   void AddLink(const opentelemetry::trace::SpanContext &span_context,
                const common::KeyValueIterable &attributes) noexcept override;
 
-  void SetStatus(trace::StatusCode code, nostd::string_view description) noexcept override;
+  void SetStatus(opentelemetry::trace::StatusCode code,
+                 nostd::string_view description) noexcept override;
 
   void SetName(nostd::string_view name) noexcept override;