This pull request upgrades the jQuery UI version used in the 2-12-stable branch from 1.12.1 to 1.13.3 to address security vulnerabilities.

Changes:

• Updated the jQuery UI library files in vendor/assets/javascripts/jquery-ui/ and to version 1.13.3.
• Modified version.js to reflect the new version number.

Testing:

• Manual tests were conducted to verify that all ActiveAdmin features relying on jQuery UI function correctly with the new version.
• No issues were observed during runtime, and all unit tests pass.

JavaScript files have been manually updated because:

• jquery-ui-rails is unmaintained and it is bundling 1.13.0
• An active fork of jquery-ui-rails is bundling 1.13.2, but there is a more recent version (1.13.3)

escape-selector has been removed because jQuery UI is using jQuery's built-in escape selector. This selector is available from version 3.0, which is required by Active Admin, so it should not be a problem

Ref #8327

Ref:

https://bugs.jqueryui.com/ticket/14991/
jquery/jquery-ui#1957

Tests that were performed manually:

• $.ui.version Version in console
• Datepicker at http://localhost:3000/admin/categories?order=name_asc
• Tabs switching at http://localhost:3000/admin/kitchensink
• dropdown menu at http://localhost:3000/admin/users
• hover menu in the navigation bar at http://localhost:3000/admin
• sorting at http://localhost:3000/admin/comments
• clear filters at http://localhost:3000/admin/comments?order=id_desc
• multiple table checkboxes at http://localhost:3000/admin/tags
• multiple checkboxes at http://localhost:3000/admin/users

Thank you for considering this upgrade. I look forward to your feedback.