fix: enforce recipient limit in multipayment

[alesmit]

Summary

https://app.clickup.com/t/mxd0fb

Checklist

• [x] The change is not hardcoded to a single network, but has multi-asset in mind
• [x] Tests
• [ ] Ready to be merged

[faustbrian]

Task linked: CU-mxd0fb [Multipayment] recipient limit not enforced