Bundled Themes: Add missing trailing `/` in HelpHub links.

HelpHub links without trailing slashes with anchors present result in an unnecessary redirect.

These were introduced with the `/` missing in [55476].

Props audrasjb.
See #57689, #57726.
Built from https://develop.svn.wordpress.org/trunk@55478


git-svn-id: http://core.svn.wordpress.org/trunk@55011 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-content/themes/twentytwentyone/readme.txt

@@ -33,7 +33,7 @@ No data is saved in the database or transferred.
 = 1.8 =
 * Released: March 28, 2023
 
-https://wordpress.org/documentation/article/twenty-twenty-one-changelog#Version_1.8
+https://wordpress.org/documentation/article/twenty-twenty-one-changelog/#Version_1.8
 
 = 1.7 =
 * Released: November 1, 2022

wp-content/themes/twentytwentythree/readme.txt

@@ -18,7 +18,7 @@ Whether you want to build a complex or incredibly simple website, you can do it
 = 1.1 =
 * Released: March 28, 2023
 
-https://wordpress.org/documentation/article/twenty-twenty-three-changelog#Version_1.1
+https://wordpress.org/documentation/article/twenty-twenty-three-changelog/#Version_1.1
 
 = 1.0 =
 * Released: November 1, 2022

wp-content/themes/twentytwentytwo/readme.txt

@@ -20,7 +20,7 @@ Whether you’re building a single-page website, a blog, a business website, or
 = 1.4 =
 * Released: March 28, 2023
 
-https://wordpress.org/documentation/article/twenty-twenty-two-changelog#Version_1.4
+https://wordpress.org/documentation/article/twenty-twenty-two-changelog/#Version_1.4
 
 = 1.3 =
 * Released: November 1, 2022

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-beta4-55477';
+$wp_version = '6.2-beta4-55478';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.