Update drupal/simple_sitemap module from 4.2.2 to 4.2.3

Author: renovate[bot]

composer.json

@@ -110,7 +110,7 @@
         "drupal/securitytxt": "1.6.0",
         "drupal/shield": "1.8.0",
         "drupal/simple_oauth": "6.1.0",
-        "drupal/simple_sitemap": "4.2.2",
+        "drupal/simple_sitemap": "4.2.3",
         "drupal/simplesamlphp_auth": "4.1.0",
         "drupal/symfony_mailer": "1.6.2",
         "drupal/tfa": "1.12.0",