Tests: Update regex to match PHP security releases in addition to stable releases.

PHP 8.3 changed from "Active support" to "Security fixes only" on January 1, 2026. 

Follow-up to [61421], [33937].

Props mukesh27, westonruter.
See #33758.


git-svn-id: https://develop.svn.wordpress.org/trunk@61422 602fd350-edb4-49c9-b593-d223f7449a82

Author: westonruter

tests/phpunit/tests/readme.php

@@ -20,7 +20,7 @@ public function test_readme_php_version() {
 
 		$response_body = $this->get_response_body( 'https://www.php.net/supported-versions.php' );
 
-		preg_match_all( '#<tr class="stable">\s*<td>\s*<a [^>]*>\s*([0-9.]*)#s', $response_body, $php_matches );
+		preg_match_all( '#<tr class="(?:stable|security)">\s*<td>\s*<a [^>]*>\s*([0-9.]*)#s', $response_body, $php_matches );
 
 		$this->assertContains( $matches[1], $php_matches[1], "readme.html's Recommended PHP version is too old. Remember to update the WordPress.org Requirements page, too." );
 	}