To be able to check the quality of the smaller work packages of the other tickets of this parent, we need to be able to run the CI for the donation bounded context with the new version of the payment bounded context.

Acceptance Criteria:

• CI produces no errors when running with the new payment domain

Implementation notes:

• Exclude problematic files from PHPStan and PHPCs by adding exemptions to their configuration files
• Mark failing tests as incomplete, to prevent code from being executed
• Adapt parts of the code that still produce (type) errors, because of missing classes. Use dummy classes/implementations in the membership namespace if needed.