Docs: Add a `@since` note for the changes to `safecss_filter_attr()` in WP 6.6.

Follow-up to [58170].

See #61111.
Built from https://develop.svn.wordpress.org/trunk@58196


git-svn-id: http://core.svn.wordpress.org/trunk@57659 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/kses.php

@@ -2304,6 +2304,7 @@ function kses_init() {
  *              Added support for `box-shadow`.
  * @since 6.4.0 Added support for `writing-mode`.
  * @since 6.5.0 Added support for `background-repeat`.
+ * @since 6.6.0 Added support for `grid-column`, `grid-row`, and `container-type`.
  *
  * @param string $css        A string of CSS rules.
  * @param string $deprecated Not used.

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-alpha-58195';
+$wp_version = '6.6-alpha-58196';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.