Forward tracking attributes to HandRaiseLeadButton Vue component

What does this MR do and why?

Inspired by this comment, this MR adds options to the HandRaiseLeadButton Vue component so that we can track clicks of the main CTA button within it.

How to set up and validate locally

In this case, it would be easiest to run the tests:

> yarn run jest -u ee/spec/frontend/hand_raise_leads/components/hand_raise_lead_button_spec.js

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

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Loosely related to #348494 (closed) & !78497 (merged)