Add tests for sensors in SwitchBot Cloud

[mckbrmn]

Proposed change

SwitchBot Cloud sensor was not covered by any tests, this PR adds some for Meters.
Presence of these tests would've prevented the mistake fixed by #135985.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
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• Link to frontend pull request:

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• Tests have been added to verify that the new code works.

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[home-assistant]

Hey there @SeraphicRav, @laurence-presland, @Gigatrappeur, mind taking a look at this pull request as it has been labeled with an integration (switchbot_cloud) you are listed as a code owner for? Thanks!

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[abmantis]

could use snapshots for both tests instead?

[home-assistant]

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks 👍

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[mckbrmn]

could use snapshots for both tests instead?

Tests changed to use snapshots as well as a fixture

[abmantis]

Thanks!