ci(deps): Update dependency grunt-autoprefixer to ~3.0.4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
grunt-autoprefixer	~3.0.3 -> ~3.0.4

---

Release Notes

ndmitry/grunt-autoprefixer

### [`v3.0.4`](https://togithub.com/ndmitry/grunt-autoprefixer/compare/v3.0.3...v3.0.4) [Compare Source](https://togithub.com/ndmitry/grunt-autoprefixer/compare/v3.0.3...v3.0.4)

---

Configuration

:date: Schedule: "after 10:30 before 18:00 every weekday except after 13:00 before 14:00" in timezone America/Lima.

:vertical_traffic_light: Automerge: Enabled.

: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.