integcli: add JSON utils for testing

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
integcli: fix map randomization failures

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
Merge pull request #6913 from unclejack/map_randomization_fixes

integcli: fix failures caused by tiny map randomization