feat(test): Replaced usage of toBeFalsy and toBeTruthy in geo_node_form_selective_sync_spec.js

What does this MR do and why?

• This MR replaces the usage of toBeFalsy and toBeTruthy
• This MR fixes #369826 (closed)

Screenshots or screen recordings

How to set up and validate locally

1. yarn
2. yarn jest ee/spec/frontend/geo_node_form/components/geo_node_form_selective_sync_spec.js

MR acceptance checklist

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• I have evaluated the MR acceptance checklist for this MR.