APM agent version constraints

APM Server is handy tool, widely used in our team, but so far we've realized it lacks validation between APM integration installed in Fleet and APM agents which sends data (correct me if I'm wrong).

It would be nice to have a way to configure version constraints for APM agents to receive data by the APM Server. It will reduce amount of invalid requests made to Elasticsearch, for example mapping exception errors, due to up-to-date APM integration and old APM agent.