v1.11.0: health checks implemented with Changes and Tasks

The highlight of this release is that health checks were reimplemented as Changes and Tasks, making it possible to introspect and debug check failures (#409).

Also included are the security fixes from #406, which were also released in the v1.10.2 patch release. In addition, there are a couple of minor fixes for layer validation and client ID validation from first-time contributor @IronCore864.

What's Changed

• feat(client): add change-update notice type by @benhoyt in #401
• fix(daemon): require admin access for POSTs and file pull API by @benhoyt in #406
• feat: make layers with label prefix "pebble-" reserved by @IronCore864 in #403
• feat: client side change id validation by @IronCore864 in #404
• chore: use RFC2602 domain (example.com) in custom notice examples by @benhoyt in #407
• feat: perform health checks via changes and tasks by @benhoyt in #409

Full Changelog: v1.10.0...v1.11.0