Diego cats errand

[#78293086]

Signed-off-by: Alex Suraci <asuraci@pivotal.io>
Bump gunk

Bump cloudfoundry/gunk:
  Trevor Ackerman:
     Disconnect from nats when natsclientrunner receives signal
     Improve specs, assert against nats connection

Signed-off-by: Abhijit Hiremagalur <abhi@pivotal.io>
update README [#78293756]
Merge remote-tracking branch 'origin/develop' into develop
skip diego acceptance tests in unit