increase version for new release

Author: Anisa

version.php

@@ -25,7 +25,7 @@
 defined('MOODLE_INTERNAL') || die();
 
 $plugin->component = 'mod_pdfannotator';
-$plugin->version   = 2023042400;
-$plugin->release  = 'PDF Annotator v1.5 release 3';
+$plugin->version   = 2023052300;
+$plugin->release  = 'PDF Annotator v1.5 release 4';
 $plugin->requires  = 2021051700;
 $plugin->maturity  = MATURITY_STABLE;