fix a deprecation warning on ue5

Source/SenseGloveEditor/Private/SGEditor/SGSkeletonEditorCommands.cpp

@@ -42,7 +42,12 @@ FSGSkeletonEditorCommands::FSGSkeletonEditorCommands()
         TEXT("SGSkeletonEditor"),
         NSLOCTEXT("Contexts", "SGSkeletonEditor", "SenseGlove Skeleton Editor"),
         NAME_None,
-        FEditorStyle::GetStyleSetName())
+#if ENGINE_MAJOR_VERSION >= 5
+        FAppStyle::GetAppStyleSetName()
+#else
+        FEditorStyle::GetStyleSetName()
+#endif  /* ENGINE_MAJOR_VERSION >= 5 */
+        )
 {
 }