Update the IRC link from Freenode to Libera.chat.

Update follows the update to https://make.wordpress.org/support/handbook/appendix/other-support-locations/introduction-to-irc/.

Fixes #53590.
Props empatogen, audrasjb.

Built from https://develop.svn.wordpress.org/trunk@51332


git-svn-id: http://core.svn.wordpress.org/trunk@50941 1a063a9b-81f0-0310-95a4-ce76da25c4cd

readme.html

@@ -76,7 +76,7 @@
 	<dt><a href="https://wordpress.org/support/forums/">WordPress Support Forums</a></dt>
 		<dd>If you&#8217;ve looked everywhere and still can&#8217;t find an answer, the support forums are very active and have a large community ready to help. To help them help you be sure to use a descriptive thread title and describe your question in as much detail as possible.</dd>
 	<dt><a href="https://make.wordpress.org/support/handbook/appendix/other-support-locations/introduction-to-irc/">WordPress <abbr>IRC</abbr> (Internet Relay Chat) Channel</a></dt>
-		<dd>There is an online chat channel that is used for discussion among people who use WordPress and occasionally support topics. The above wiki page should point you in the right direction. (<a href="irc://irc.freenode.net/wordpress">irc.freenode.net #wordpress</a>)</dd>
+		<dd>There is an online chat channel that is used for discussion among people who use WordPress and occasionally support topics. The above wiki page should point you in the right direction. (<a href="https://web.libera.chat/#wordpress">irc.libera.chat #wordpress</a>)</dd>
 </dl>
 
 <h2>Final Notes</h2>

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-51331';
+$wp_version = '5.9-alpha-51332';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.