Be less strict when detecting dead daemons

Summary:
Fixes T12306. Currently, we warn about daemons not running even if they're in normal "alive" states, particularly "waiting to restart after a failure".

This check was made more strict in D12088, back when we tried to version check running daemons. Since we implemented auto-restart-after-config-change we don't do this anymore, so it should be fine to make this more lax again.

Test Plan:

• Faked an exception for all tasks.
• Before patch: reloading the daemon setup error sometimes raised a false positive ("waiting" daemon detected as dead).
• After patch: daemon setup error no longer triggers.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12306

Differential Revision: https://secure.phabricator.com/D17397