ObjectMapperProvider uses removed PropertyNamingStrategy.SNAKE_CASE — incompatible with Jackson 2.18+

[johnbonds]

ObjectMapperProvider.java:13 references PropertyNamingStrategy.SNAKE_CASE, which was deprecated in Jackson 2.12 and removed in 2.18. This causes a NoSuchFieldError at runtime when used with any framework that pulls in Jackson 2.18+, including Spring Boot 3.5.x.

java.lang.NoSuchFieldError: Class com.fasterxml.jackson.databind.PropertyNamingStrategy does not have member field 'com.fasterxml.jackson.databind.PropertyNamingStrategy SNAKE_CASE'
    at com.cloudconvert.client.mapper.ObjectMapperProvider.provide(ObjectMapperProvider.java:13)