chore(ci): add the Feature Flags feature to nox tests

[leandrodamascena]

Issue number: #4557

Summary

Changes

Adding the Feature Flags feature to nox tests

User experience

Please share what the user experience looks like before and after this change

Checklist

If your change doesn't seem to apply, please leave them unchecked.

• [x] Meet tenets criteria
• [x] I have performed a self-review of this change
• [x] Changes have been tested
• [x] Changes are documented
• [x] PR title follows conventional commit semantics

Is this a breaking change?

**RFC issue number**: Checklist: * [ ] Migration process documented * [ ] Implement warnings (if it can live side by side)

Acknowledgment

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.43%. Comparing base (e14e768) to head (7d0ceda). Report is 608 commits behind head on develop.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #4570 +/- ## =========================================== + Coverage 96.38% 96.43% +0.05% =========================================== Files 214 219 +5 Lines 10030 10628 +598 Branches 1846 1976 +130 =========================================== + Hits 9667 10249 +582 - Misses 259 267 +8 - Partials 104 112 +8 ```

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