Step fails as Karavictl returns YAML instead of JSON

[donatwork]

Description

Scenario "Install PowerScale Driver(With Authorization)" consistently failed with err: failed to unmarshal token apiVersion: v1. Issue discovered with latest version of karavictl built from main. Karavictl is now returning YAML which breaks the JSON unmarshalling.

GitHub Issues

List the GitHub issues impacted by this PR:

GitHub Issue #
dell/csm#853

Checklist:

• [X ] I have performed a self-review of my own code to ensure there are no formatting, vetting, linting, or security issues
• I have verified that new and existing unit tests pass locally with my changes
• I have not allowed coverage numbers to degenerate
• I have maintained at least 90% code coverage
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have maintained backward compatibility

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also list any relevant details for your test configuration

• [X ] Install PowerScale Driver(With Authorization) passes. Code is used in common step to setup token.