PHP Dependency: Switch from Omnipay to another solution

[SamBrishes]

Omnipay seems obsolete (the last release is more then 2 years ago), which is a lack for security vulnerabilities.

Alternatives:

• https://github.com/Payum/Payum
• https://laravel.com/docs/10.x/billing

May use multiple providers and allow the user to switch?

• [ ] Integrate new solution