Hi,
I'm trying to lint my protobuf files, like prototool lint <dir>,
sometimes I got errors like this:

walking the directory structure looking for proto files   
timed out after 3s and having seen 3000 files,   
are you sure you are operating in the right context?

https://github.com/uber/prototool/blob/dev/internal/file/proto_set_provider.go#L238-L240
https://github.com/uber/prototool/blob/dev/internal/settings/settings.go
seems we cannot change the timeout value via prototool.yaml
is there any way we can increase the default walk timeout of 3s?