Update dependency xo to v0.28.2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
xo	devDependencies	patch	0.28.1 -> 0.28.2

---

Release Notes

xojs/xo

### [`v0.28.2`](https://togithub.com/xojs/xo/releases/v0.28.2) [Compare Source](https://togithub.com/xojs/xo/compare/v0.28.1...v0.28.2) - Set `indent` rule for TS files too ([#​451](https://togithub.com/xojs/xo/issues/451)) [`41b1bd7`](https://togithub.com/xojs/xo/commit/41b1bd7) - Fix compatibility with latest TypeScript-ESLint version ([#​452](https://togithub.com/xojs/xo/issues/452)) [`28902f0`](https://togithub.com/xojs/xo/commit/28902f0)

---

Renovate configuration

:date: Schedule: At any time (no schedule defined).

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

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

:no_bell: 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 WhiteSource Renovate. View repository job log here.