Adapt Notification module for new Mollie orderid format

[brunastiatand]

Description

The storage of new Mollie OrderId with the adapted format for CommerceTools, requires the adaptation of the Notification Module to convert the requests with the new format.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Testing

Executed and updated all the existing tests
Executed manually a full flow in pre production environment

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have updated the documentation where necessary
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works/doesn't break everything
• Existing tests pass locally with my changes