fix(oauth/refresh-token): Change scope to oauth2

[jnv]

Description

oauth scope is among reserved words, so is auth. This renames the current oauth/refresh-token profile and associated maps to oauth2/refresh-token.

Motivation and Context

Types of changes

• [x] 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:

• [x] I have read the CONTRIBUTING document.
• [x] I haven't repeated the code. (DRY)
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.

[jnv]

@janhalama No worries, I had no idea either.