Update tom-select to version 2.5.2

In addition to other fixes, this specifically addresses an issue
where aria labels were not being retained on tom-select controls,
creating an accessibility issue. These elements now correctly
retain the labels.

Author: cbrandtbuffalo

devel/third-party/README

@@ -82,7 +82,7 @@ Description: a powerful and robust date time picker
 Origin: https://getdatepicker.com/
 License: MIT
 
-* tom-select-2.4.1
+* tom-select-2.5.2
 Description: a modern select with autocomplete and native-feeling keyboard navigation
 Origin: https://tom-select.js.org/
 License: Apache