message: fix output dir
diff: @@ -3,3 +3,6 @@ set_target_properties(loadable_extension_demo PROPERTIES PREFIX "")
  target_link_libraries(loadable_extension_demo duckdb ${DUCKDB_EXTRA_LINK_FLAGS})
  set_target_properties(loadable_extension_demo PROPERTIES SUFFIX
  ".duckdb_extension")
  +
  +set_target_properties(shell PROPERTIES RUNTIME_OUTPUT_DIRECTORY
  + ${CMAKE_BINARY_DIR}/test/extension)
  