Administration: Fix increasing of the frequency of Heartbeat API requests.

Props peterwilsoncc, azaozz.
Fixes #61960.
Built from https://develop.svn.wordpress.org/trunk@59092


git-svn-id: http://core.svn.wordpress.org/trunk@58488 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/edit-form-blocks.php

@@ -126,9 +126,10 @@ wp_add_inline_script(
 // Set Heartbeat interval to 10 seconds, used to refresh post locks.
 wp_add_inline_script(
 	'heartbeat',
-	'if ( window.wp && window.wp.heartbeat ) {
-		window.wp.heartbeat.interval( 10 );
-	}'
+	'jQuery( function() {
+		wp.heartbeat.interval( 10 );
+	} );',
+	'after'
 );
 
 /*

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.7-alpha-59091';
+$wp_version = '6.7-alpha-59092';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.