ClipboardButton: Pass through props to underlying Button

[benlk]

Is your enhancement related to a problem? Please describe.

I would like to set the variant property on the underlying Button so that it looks like a button instead of a random text string:

Designs

<ClipboardButton
    text={formData}
    variant='primary'
/>

Then pass props to this <Button>:

block-components/components/clipboard-button/index.tsx

Lines 81 to 85 in 766fc8d

	return (
	<Button disabled={disabled} ref={ref}>
	{hasCopied ? copied : copy}
	</Button>
	);

Describe alternatives you've considered

I have also considered reimplementing this component in my project, but it's not that important.

Code of Conduct

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