all: use any instead of interface{}

Created by: keegancsmith

Now that we require go1.18, we can use a builtin type alias for interface{}: any. I've updated all code except lib, which can be imported by external modules. That is currently pinned at go1.16. Additionally I had to rerun generate since rewriting generated go code will fail CI.

find -name '*.go' | xargs gofmt -s -r 'interface{} -> any' -w
git checkout lib
go generate ./...

Test Plan: CI will exercise that the code still compiles. Otherwise this is a noop.

Merged by: keegancsmith at 2022-05-09 08:59:39 UTC