polyfill only within celo test

[Wozacosta]

✅ Checklist

• npx changeset was attached.
• Covered by automatic tests.
• Impact of the changes:
  • ...

📝 Description

Replace this text by a clear and concise description of what this pull request is about and why it is needed. Be sure to explain the problem you're addressing and the solution you're proposing.
For libraries, you can add a code sample of how to use it.
For bug fixes, you can explain the previous behaviour and how it was fixed.
In case of visual features, please attach screenshots or video recordings to demonstrate the changes.

❓ Context

• JIRA or GitHub link:

---

🧐 Checklist for the PR Reviewers

• The code aligns with the requirements described in the linked JIRA or GitHub issue.
• The PR description clearly documents the changes made and explains any technical trade-offs or design decisions.
• There are no undocumented trade-offs, technical debt, or maintainability issues.
• The PR has been tested thoroughly, and any potential edge cases have been considered and handled.
• Any new dependencies have been justified and documented.
• Performance considerations have been taken into account. (changes have been profiled or benchmarked if necessary)

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
web-tools	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Dec 12, 2024 0:35am

3 Skipped Deployments

Name	Status	Preview	Comments	Updated (UTC)
ledger-live-github-bot	⬜️ Ignored (Inspect)			Dec 12, 2024 0:35am
native-ui-storybook	⬜️ Ignored (Inspect)			Dec 12, 2024 0:35am
react-ui-storybook	⬜️ Ignored (Inspect)			Dec 12, 2024 0:35am