Google Business Profile reporting

## Feature Description

With the [new metrics available](https://support.google.com/analytics/answer/9164320?hl=en#:~:text=New%20Google%20Business%20Profile%20integration) for Google Business Profile users (GBP), consider surfacing such details within Site Kit, possibility within it's own section or as part of any future features, including those related to capturing events and summarising Analytics or Search Console data.

A full summary of this new addition can be found in [this Google Analytics guide](https://support.google.com/analytics/answer/16930347?hl=en), while there may be Analytics API endpoints coming soon. There are already metrics which I suspect can be obtained from the [Business Profile API](https://developers.google.com/my-business/content/overview).

Note that there have been user requests for Google Business Profile integration within Site Kit previously. See https://github.com/google/site-kit-wp/issues/6269 for one example and good use case.

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## Acceptance criteria

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## Implementation Brief

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### Test Coverage

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## QA Brief

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## Changelog entry

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