feat: add dynamic fields support for affirm

[aritro2002]

Type of Change

• [ ] Bugfix
• [x] New feature
• [ ] Enhancement
• [ ] Refactoring
• [ ] Dependency updates
• [ ] Documentation
• [ ] CI/CD

Description

Added dynamic fields support for affirm

How did you test it?

Tested via not passing email to a new customer_id and checking whether it is getting rendered through dynamic fields or not. Tested via passing all the values and checking no field should be rendered.

Checklist

• [x] I ran npm run re:build
• [x] I reviewed submitted code
• [ ] I added unit tests for my changes where possible

[semanticdiff-com[bot]]

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