Added binary to the list of optional executables

Co-authored-by: Andre Sailer <andre.philippe.sailer@cern.ch>

UtilityApps/CMakeLists.txt

@@ -45,6 +45,7 @@ endif()
 if(TARGET ROOT::ROOTEve)
   add_executable(geoWebDisplay src/webdisplay.cpp)
   target_link_libraries(geoWebDisplay DD4hep::DDCore)
+  LIST(APPEND OPTIONAL_EXECUTABLES geoWebDisplay)
 endif()
 
 # #-----------------------------------------------------------------------------------
@@ -96,4 +97,4 @@ INSTALL(TARGETS geoDisplay
   ${OPTIONAL_EXECUTABLES}
   EXPORT DD4hep
   RUNTIME DESTINATION bin
-  )
\ No newline at end of file
+  )