Help/About: Add additional release squad titles to credits page.

Introduces translatable strings for additional [https://make.wordpress.org/core/handbook/about/release-cycle/wordpress-release-team-and-focus-leads/ release squad titles].

This is to allow improved acknowledgement of an individual's role in a release squad by enabling the use of these roles in the credits API going forward.

Props audrasjb, desrosj, jorbin, timse201, yogeshbhutkar.
Fixes #62386.



git-svn-id: https://develop.svn.wordpress.org/trunk@59545 602fd350-edb4-49c9-b593-d223f7449a82

Author: peterwilsoncc

src/wp-admin/credits.php

@@ -135,3 +135,17 @@
 __( 'Release Deputy' );
 __( 'Core Developer' );
 __( 'External Libraries' );
+__( 'Release Coordination' );
+__( 'Core Tech Lead' );
+__( 'Core Triage Lead' );
+__( 'Editor Tech Lead' );
+__( 'Editor Triage Lead' );
+__( 'Documentation Lead' );
+__( 'Test Lead' );
+__( 'Design Lead' );
+__( 'Performance Lead' );
+__( 'Default Theme Design Lead' );
+__( 'Default Theme Development Lead' );
+__( 'Tech Lead' );
+__( 'Triage Lead' );
+__( 'Minor Release Lead' );