As you may know, our solutions are being moved to a new approach using system packages. This is the case of Drupal cloud images.
Since everything under
/opt/bitnami/php/bin/ belongs to root, it is necessary to install it as root and this should not alter the default installation.
Anyway, if you face any problem with the permissions after upgrading, we would like to know it and help you to restore any change that may be produced.