return non-zero status codes for some cases

[sagar-connect]

Checklist

=========

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have checked for similar issues and haven't found anything relevant.
• This is not a security issue (which should be reported here: https://circleci.com/security/)
• I have read Contribution Guidelines.

Changes

=======

• Return non-zero status code for failed user interaction on policy push command [SECENG-816]
• Return non-zero status code for decision resulting in non-PASSED [SECENG-822]