Add escaping in widget archives page

[jaedm97]

In the widget class-wp-widget-archives.php, there is a missing escaping of $title;, Here is the code -

<label class="screen-reader-text" for="<?php echo esc_attr( $dropdown_id ); ?>"><?php echo $title; ?></label>

[jaedm97]

Created patch.

[ocean90]

Hello there, $title can contain HTML depending on whether the widget's before_title/after_title arguments are set.

The title as entered by the user is already escaped through the widget_title filter and esc_html(), see https://core.trac.wordpress.org/browser/tags/6.1.1/src/wp-includes/default-filters.php?desc=1#L149.