Upgrade for 8.2.1 and 8.4

[Fresheyeball]

No description provided.

[gwils]

Per haskell-infra/hackage-trustees#202 I have revised the base and template-haskell bounds on functor-infix 0.0.5. It should now build on GHCs up to 8.6.

[414owen]

@gwils I'm not sure how sensitive TH is to base revisions, but maybe we could bump the bounds to something a little more futureproof? Maybe even base >= 4.7 && <5?

[gwils]

I am no longer a hackage trustee. The package maintainer or a current trustee can take care of this.

[sjakobi]

As a Hackage trustee, I have revised the base and template-haskell bounds on v0.0.5, as requested in haskell-infra/hackage-trustees#328: https://hackage.haskell.org/package/functor-infix-0.0.5/revisions/