Thanks for your suggestion, we're actively monitoring the situation but the SVCB/HTTP type hasn't been standardized yet. The most recent draft of the standard can be found here:
https://datatracker.ietf.org/doc/draft-ietf-dnsop-svcb-https/
As you can see over there, the draft is constantly being edited (last edit Nov 2, 2020) so things may still change.