Update:
- golangci-lint from v1.42.1 to v1.46.2
- protoc from v3.15.6 to v3.20.1
- protoc-gen-go from v1.26.0 to v1.28.0
- protoc-gen-go-grpc from v1.1.0 to v1.2.0
- fpm from v1.14.0 to v1.14.2
Also remove a reference to go1.17.9 from one last place.
This does result in updating all of our generated .pb.go files, but only
to update the version number embedded in each file's header.
Fixes#6123
Update from v1.42.1 to v1.45.2. This version has both
better support for go1.18, and better automatic detection
of which go version to use (based on our go.mod file,
it will currently use go1.17).
Adapted from https://github.com/golangci/golangci-lint-action#how-to-use.
Uses the same version we've been using in boulder-tools.
Part of #5946
Note: we will eventually want to go back to doing this in boulder-tools,
so it's easy to run the lints locally. But this is useful so we can
unblock testing on go 1.18beta2.
dependabot[bot]