Update gradle/gradle-build-action action to v3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
gradle/gradle-build-action	action	major	v2 -> v3

---

Release Notes

gradle/gradle-build-action (gradle/gradle-build-action)

### [`v3`](https://redirect.github.com/gradle/gradle-build-action/compare/v2...v3) [Compare Source](https://redirect.github.com/gradle/gradle-build-action/compare/v2...v3)

---

Configuration

📅 Schedule: Branch creation - "on the first day of the month" (UTC), 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.