Add beta tag to version

kudos-donations.php

@@ -10,7 +10,7 @@
  * Plugin Name:       Kudos Donations
  * Plugin URI:        https://gitlab.iseard.media/michael/kudos-donations
  * Description:       Add a donation button to any page on your website. Easy & fast setup. Works with Mollie payments.
- * Version:           3.1.0
+ * Version:           3.1.0-beta
  * Author:            Iseard Media
  * Author URI:        https://iseard.media
  * Requires at least: 5.5
@@ -52,7 +52,7 @@ if ( class_exists( Dotenv::class ) ) {
 /**
  * Define all the Kudos Donations constants for use throughout the plugin.
  */
-define( 'KUDOS_VERSION', '3.1.0' );
+define( 'KUDOS_VERSION', '3.1.0-beta' );
 define( 'KUDOS_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
 define( 'KUDOS_PLUGIN_DIR', dirname( __FILE__ ) );
 define( 'KUDOS_STORAGE_URL', wp_upload_dir()['baseurl'] . '/kudos-donations/' );