typings: Stop extending the JWTUser type in the User model
typings: Stop extending the JWTUser type in the User model

Change-type: patch
See: https://github.com/balena-io/balena-sdk/issues/966
Signed-off-by: Thodoris Greasidis <5791bdc4541e79bd43d586e3c3eff1e39c16665f@balena.io>

resin-io/resin-sdk