test: disable check for airgap

[jokuniew]

Description

This code is for testing purposes only - disable airgap check to verify k3s setup on ubuntu

Fixes # (issue)

Any Newly Introduced Dependencies

Please describe any newly introduced 3rd party dependencies in this change. List their name, license information and how they are used in the project.

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Checklist:

• I agree to use the APACHE-2.0 license for my code changes
• I have not introduced any 3rd party dependency changes
• I have performed a self-review of my code

[jokuniew]

This PR was used here
open-edge-platform/edge-manageability-framework#519
open-edge-platform/edge-manageability-framework@68009bd
to verify if k3s non-airgap installation succeeds on Ubuntu - it does

this PR will be closed in favor of #117
or other fix