Fix libgnc-app-utils.dylib install_name_dir.

The install location changed as part of expunging libgnc-module.

libgnucash/app-utils/CMakeLists.txt

@@ -106,7 +106,7 @@ target_include_directories (gnc-app-utils
 target_compile_definitions (gnc-app-utils PRIVATE -DG_LOG_DOMAIN=\"gnc.app-utils\")
 
 if (APPLE)
-  set_target_properties (gnc-app-utils PROPERTIES INSTALL_NAME_DIR "${CMAKE_INSTALL_FULL_LIBDIR}/gnucash")
+  set_target_properties (gnc-app-utils PROPERTIES INSTALL_NAME_DIR "${CMAKE_INSTALL_FULL_LIBDIR}")
 endif()
 
 install(TARGETS gnc-app-utils