Update the version to PHP 8.3

ubuntu/resources/config.sh

@@ -27,7 +27,7 @@ database_port=5432                          # port number
 database_backup=false                       # true or false
 
 # General Settings
-php_version=8.1                             # PHP version 5.6 or 7.0, 7.1, 7.2
+php_version=8.3                             # PHP version 8.4, 8.3, 8.2, 8.1
 letsencrypt_folder=true                     # true or false
 
 # Optional Applications