Upgrade/Install: Allow for WordPress.org to remotely disable auto-updates for plugins/themes

As auto-updates are rolled out across WordPress.org, the API response can modulate the response, ensuring that a rolled out could be stalled or staggered if needed for security or performance reasons.

Fixes #50824.
Props dd32, whyisjake, SergeyBiryukov.



git-svn-id: https://develop.svn.wordpress.org/trunk@48701 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/class-wp-automatic-updater.php

@@ -170,6 +170,11 @@ class WP_Automatic_Updater {
 			$update = ! empty( $item->autoupdate );
 		}
 
+		// If the `disable_autoupdate` flag is set, override any user-choice, but allow filters.
+		if ( ! empty( $item->disable_autoupdate ) ) {
+			$update = $item->disable_autoupdate;
+		}
+
 		/**
 		 * Filters whether to automatically update core, a plugin, a theme, or a language.
 		 *