[Doppins] Upgrade dependency coverage to ==4.3.1

[doppins-bot]

Hi!

A new version was just released of coverage, so Doppins
has upgraded your project's dependency ranges.

Make sure that it doesn't break anything, and happy merging!

---

Upgraded coverage from ==4.0.3 to ==4.1

[doppins-bot]

An additional new version was just released of coverage, so we've added an
extra commit upgrading your range to ==4.2.

Hope that's alright!
— Doppins

[doppins-bot]

An additional new version was just released of coverage, so we've added an
extra commit upgrading your range to ==4.3.

Hope that's alright!
— Doppins

[doppins-bot]

An additional new version was just released of coverage, so we've added an
extra commit upgrading your range to ==4.3.1.

Hope that's alright!
— Doppins