Fix georadius tests

[AvitalFineRedis]

Pull Request check-list

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• Does $ tox pass with this change (including linting)?
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• Is the new or changed code fully tested?
• Is a documentation update included (if this change modifies existing APIs, or introduces new ones)?

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Description of change

These tests were falling when running redis v6.0.9 as COUNT is available only from v6.2.0