fix(deps): update dependency react-map-gl to v5.3.21

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
react-map-gl	5.3.19 -> 5.3.21

---

Release Notes

visgl/react-map-gl

### [`v5.3.21`](https://togithub.com/visgl/react-map-gl/releases/tag/v5.3.21) [Compare Source](https://togithub.com/visgl/react-map-gl/compare/v5.3.20...v5.3.21) - Add a null-check to map.style in createSource ([#​2065](https://togithub.com/visgl/react-map-gl/issues/2065)) ### [`v5.3.20`](https://togithub.com/visgl/react-map-gl/releases/tag/v5.3.20) [Compare Source](https://togithub.com/visgl/react-map-gl/compare/v5.3.19...v5.3.20) - Add conditional to mapboxScaleControl.\_onMove ([#​1961](https://togithub.com/visgl/react-map-gl/issues/1961))

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.