[6.14.z] avoiding the ohsnap repo url incase of nightly

[omkarkhatavkar]

Cherrypick of PR: #16672

Problem Statement

avoiding the oh-snap repo url in case of nightly, This was missed in my previous work related to upstream sanity

Solution

Nightly checks will be added to the satellite repos based on the environment.

Related Issues

[Gauravtalreja1]

trigger: test-robottelo
pytest: -m 'build_sanity and not no_compose' tests/foreman
env:
     ROBOTTELO_server__version__source: 'nightly'
     ROBOTTELO_capsule__version__source: 'nightly'

[Satellite-QE]

PRT Result

Build Number: 8974
Build Status: SUCCESS
PRT Comment: pytest -m build_sanity and not no_compose tests/foreman --external-logging
Test Result : ======= 11 passed, 5359 deselected, 5640 warnings in 3066.10s (0:51:06) ========