Googlesheets dont run update or append id there is no data

[PiusKariuki]

Summary

The batchUpdateValues and append functions return early in the event of an empty or undefined array

Fixes #576

Details

• Added unit tests to test this functionality
• Added conditionals to check the values param

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Review Checklist

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• Does the PR do what it claims to do?
• If this is a new adaptor, added the adaptor on marketing website ?
• Are there any unit tests?
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  dev only changes don't need a changeset.
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[PiusKariuki]

@josephjclark Please review this for me when you get the time. Thanks!

[josephjclark]

Thank you @PiusKariuki - I'll get this merged and released soon.