Improve integration tests

[chris-rock]

Description

The current integration tests need some updates to ensure they are running with the latest chef-client and inspec versions.

• fix vagrant integration tests
• fix docker integration tests

InSpec and Platform Version

0.26.0

Replication Case

run bundle exec kitchen test

[stevendanna]

Some more notes on the current situation:

• bundle exec kitchen test works on the ubuntu platforms but only if DOCKER=true is set in the environment. Currently, many of our spec files early exit if they findDOCKER=true in the environment.
• On centos we've observed 3 different behaviors depending on the version of chef-client and the version of the runit cookbook: (1) infinite loop when trying to handle a restart notification on a runit service, (2) indefinitely waiting on the runit service to start up, (3) a crash during the CCR.

[chris-rock]

Is done by #863 and #869