dashboard.php into child theme

Hi,

I have changed the number of Publishing Soon and Recently Published in the Activity widget on the admin Dashboard.
I would like to add this change to the child theme but I’m not sure how as the file is located at public_html/wp-admin/includes/dashboard.php

This is the section I have edited:

function wp_dashboard_site_activity() {

	echo '<div id="activity-widget">';

	$future_posts = wp_dashboard_recent_posts(
		array(
			'max'    => 15,
			'status' => 'future',
			'order'  => 'ASC',
			'title'  => __( 'Publishing Soon' ),
			'id'     => 'future-posts',
		)
	);
	$recent_posts = wp_dashboard_recent_posts(
		array(
			'max'    => 10,
			'status' => 'publish',
			'order'  => 'DESC',
			'title'  => __( 'Recently Published' ),
			'id'     => 'published-posts',
		)
	);

Any guidance would be appreciated.

Chery

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