Updated healthcheck command to support TLS configuration. accompanying
env.example sets FLEET_SERVER_TLS=true by default but our default test
in docker-compose.yml tests to http. Causes test to fail.
<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Closes https://github.com/fleetdm/fleet/issues/46927
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Chores**
* Updated service health monitoring to correctly probe the health
endpoint over HTTPS when TLS is enabled, and over HTTP when it is not.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Dan Gordon
30e5ee0a8a