[CTFE] Point readiness probe to /healthz and do not log it
[CTFE] Point readiness probe to /healthz and do not log it

This is to get rid of the spam that was showing up every 3 seconds.

Bug: skia:8008
Change-Id: Ie6f9799ad16b82f1b776d8114d6a5645b9b6ed1c
Reviewed-on: https://skia-review.googlesource.com/150003
Reviewed-by: Ben Wagner <3ef7217be91069877d94f7907ce5479000772cd3@google.com>
Commit-Queue: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot