chore(deps): update dependency firebase-tools from v13.20.2 to v13.21.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
firebase-tools	13.20.2 -> 13.21.0

---

Release Notes

firebase/firebase-tools (firebase-tools)

### [`v13.21.0`](https://redirect.github.com/firebase/firebase-tools/releases/tag/v13.21.0) [Compare Source](https://redirect.github.com/firebase/firebase-tools/compare/v13.20.2...v13.21.0) - Add apphosting:rollouts:create CLI command. ([#​7687](https://redirect.github.com/firebase/firebase-tools/issues/7687)) - Updated emulator UI to version 1.14.0, which adds support for SDK defined extensions. - Added emulator support for SDK defined extensions. - Fixed various trigger handling issues in the Functions emualtor, including an issue where Eventarc functions would not be emulated correctly after a reload. - Added support for generating Dart SDKs for Data Connect connectors. - Commands now correctly default to 'default' alias when there is more than one alias listed. ([#​7624](https://redirect.github.com/firebase/firebase-tools/issues/7624)) - Updated Data Connect emulator to v1.15.0, which includes bug fixes for `insertMany` and improved error handling.

---

Configuration

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

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, 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 was generated by Mend Renovate. View the repository job log.

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud