Release v5.3.0-alpha3 (#38357)

* Bump version to 5.3.0-alpha3

* Dist

js/dist/util/sanitizer.js

@@ -1,5 +1,5 @@
 /*!
-  * Bootstrap sanitizer.js v5.3.0-alpha2 (https://getbootstrap.com/)
+  * Bootstrap sanitizer.js v5.3.0-alpha3 (https://getbootstrap.com/)
   * Copyright 2011-2023 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
   */
@@ -17,7 +17,6 @@
    */
 
   const uriAttributes = new Set(['background', 'cite', 'href', 'itemtype', 'longdesc', 'poster', 'src', 'xlink:href']);
-  const ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i;
 
   /**
    * A pattern that recognizes a commonly useful subset of URLs that are safe.
@@ -44,6 +43,9 @@
     // Check if a regular expression validates the attribute.
     return allowedAttributeList.filter(attributeRegex => attributeRegex instanceof RegExp).some(regex => regex.test(attributeName));
   };
+
+  // js-docs-start allow-list
+  const ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i;
   const DefaultAllowlist = {
     // Global attributes allowed on any supplied element below.
     '*': ['class', 'dir', 'id', 'lang', 'role', ARIA_ATTRIBUTE_PATTERN],
@@ -77,6 +79,8 @@
     u: [],
     ul: []
   };
+  // js-docs-end allow-list
+
   function sanitizeHtml(unsafeHtml, allowList, sanitizeFunction) {
     if (!unsafeHtml.length) {
       return unsafeHtml;