Help request icon (question mark in callout)
**Describe the requested icon(s)**

Question mark inside a callout, meaning "Help request", "support request", "support chat", possibly "Request help".

At the moment, there a few alternatives including the question mark in a circle, a simple question mark and a lifebuoy.
The lifebuoy might be unclear for some, the other icons are suited for "support" or "help", but they lack the interaction part (support _request_, support _chat_...).

Current results for "help":
<img width="1253" alt="image" src="https://github.com/phosphor-icons/homepage/assets/83951798/b8d0e372-ef27-4894-a642-821ce6373b21">


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**References**

I'd go for a simple callout with a question mark inside, similar to this (found on the web).

<img width="135" alt="image" src="https://github.com/phosphor-icons/homepage/assets/83951798/b81650d3-77fd-453c-8c51-11a6e000800b">

It would be great to also have variations, like we currently have with icons (possibly also the orientation of the callout "point").

<img width="1320" alt="image" src="https://github.com/phosphor-icons/homepage/assets/83951798/3fcc44ad-9062-456a-9382-a468b8944c5d">


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**Additional context**

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