(OICS-764): Fix sending empty claim amount

Related Task

Closes OICS-764

Fix #302 (closed)

Test Log

Test Profile: Open Insurance Brasil Functional Tests for Phase 3 - Services
Test Plan: Functional test for Quote Patrimonial Business API - based on Swagger version: 1.8.0
Test Module: opin-quote-patrimonial-business_api_core-ackn_test-module_v1

test-log-opin-quote-patrimonial-business_api_core-ackn_test-module_v1-private_key_jwt-by_value-openinsurance_brazil-plain_response-8zzNN8TI6y10OuH.zip

Before the conformance was sending claimAmount field empty, as it is optional, the field is no longer included in the payload.

Before	Now