Update dependency androidx.appcompat:appcompat to v1.4.0

This MR contains the following updates:

Package	Update	Change
androidx.appcompat:appcompat (source)	minor	1.3.1 -> 1.4.0

---

Configuration

Schedule: At any time (no schedule defined).

Automerge: Disabled by config. Please merge this manually once you are satisfied.

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

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

---

• If you want to rebase/retry this MR, click this checkbox.

---

This MR has been generated by Renovate Bot.