Django-oscar-cybersource

Fix

- make optional config actually optional
- **deps**: update dependency phonenumbers to ^8.13.55
- **deps**: update dependency cryptography to ^44.0.1
- **deps**: update dependency lxml to ^5.3.1
- **deps**: update dependency django to ^4.2.19
- **deps**: update dependency django-stubs-ext to ^5.1.3

Fix

- incorrect SOAP response serialization in CyberSourceReply.log_soap_response

Fix

- wrap order model import in TYPE_CHECKING conditional to fix overridden order models

Fix

- wrap order model import in TYPE_CHECKING conditional to fix overridden order models

Fix

- add py.typed marker
- **deps**: update dependency phonenumbers to ^8.13.54

Feat

- update SOAP code to use pkcs12 auth (28272)
- add type annotations

Fix

- typing tweaks
- **deps**: update dependency django-oscar-api-checkout to ^3.6.1