update class attribute

[joshuaPerakis]

Description

Update class attribute for equality checks

Motivation and Context

Pre-fix the script errors out with "AttributeError: 'PrismaCloudAPI' object has no attribute 'username'.

How Has This Been Tested?

I created temporary service account keys in app3 pcs tenant and ran the script post-fix. Script now worked as expected.

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [ ] I have updated the documentation accordingly.
• [ ] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes if appropriate.
• [ ] All new and existing tests passed.