Formatting: Support aria content attributes.

Add `aria-controls`, `aria-expanded`, and `aria-current` to allowed attributes in KSES.

Props crs1138, rsiddharth, mukesh27, SergeyBiryukov, joedolson, ryokuhi, peterwilsoncc, audrasjb, nataliat2004.
Fixes #55370.

git-svn-id: https://develop.svn.wordpress.org/trunk@55937 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/kses.php

@@ -2608,6 +2608,7 @@ function safecss_filter_attr( $css, $deprecated = '' ) {
  * @since 3.5.0
  * @since 5.0.0 Added support for `data-*` wildcard attributes.
  * @since 6.0.0 Added `dir`, `lang`, and `xml:lang` to global attributes.
+ * @since 6.3.0 Added `aria-controls`, `aria-current`, and `aria-expanded` attributes.
  *
  * @access private
  * @ignore
@@ -2617,8 +2618,11 @@ function safecss_filter_attr( $css, $deprecated = '' ) {
  */
 function _wp_add_global_attributes( $value ) {
 	$global_attributes = array(
+		'aria-controls'    => true,
+		'aria-current'     => true,
 		'aria-describedby' => true,
 		'aria-details'     => true,
+		'aria-expanded'    => true,
 		'aria-label'       => true,
 		'aria-labelledby'  => true,
 		'aria-hidden'      => true,