auro-hyperlink: add tertiary option to CTA hyperlink

[leeejune]

Is your feature request related to a problem? Please describe.

Currently the component offers primary and secondary hyperlink buttons that look alike to our auro-button component. However, the tertiary variant is not available in hyperlink.

Describe the solution you'd like

Add a tertiary variant to the CTA hyperlink to match our auro-button component (default AND slim sizes).

Describe alternatives you've considered

No response

Additional context

No response

Exit criteria

CTA hyperlink has a tertiary variant that matches auro-button specs.

[Patrick-Daly-AA]

@leeejune could you please add a link to a relevant design doc for what you'd like the tertiary option to look like? Even if it's a link to the existing button docs, that'd be fine.

[leeejune]

@Patrick-Daly-AA Here's the blueprint: https://www.figma.com/file/TSFOFDwWQxmpPpYQ2F06lH/Hyperlink?type=design&node-id=2233-2573&mode=design&t=Q8Yt4ZHbjJQAenbr-11