Archetype should use NiFi version instead of version for nifi-standard-services-api-nar

The current nifi-processor-bundle-archetype sets the nifi-standard-services-api-nar to ${version} which matches the processor version instead of the version of NiFi being used.

Suggest either removing the version entirely (it should inherit from the parent pom or set to ${nifiVersion} so it matches the version of NiFi being used.