entrypoint: include mender-gui in monitored DNS names
entrypoint: include mender-gui in monitored DNS names

Include mender-gui name in monitored DNS names by default.

Fixes: [MEN #1548]
Changelog: title

Signed-off-by: Maciej Borzecki <f609d9f713abcd5f8f0e51f08dc151638a7681e7@rndity.com>

maciejmrowiec/mender-api-gateway-docker