dilab/omnipay-ipay88 seems to be outdated for PHP 8

[leonardyhuang]

Hi,

The current iPay88 gateway seems outdated and no longer maintained.

Problem 1
    - Root composer.json requires dilab/omnipay-ipay88 ~2.0 -> satisfiable by dilab/omnipay-ipay88[2.0.0, 2.0.1].
    - dilab/omnipay-ipay88[2.0.0, ..., 2.0.1] require omnipay/common 3.0-beta.1 -> satisfiable by omnipay/common[v3.0-beta.1].
    - omnipay/common[v3.0-alpha.4, ..., v3.0-beta.1] require php ^7.1 -> your php version (8.4.5) does not satisfy that requirement.

However, one of the forks: https://packagist.org/packages/nextbyte/omnipay-ipay88, seems pretty up to date.