gRPC-netty is old, and depends on a broken version of netty

[Kernald]

I'm trying to use Dagger-gRPC which is, as far as I understand, built with dependencies coming from this repository - specifically grpc-netty (dependency defined here).

The issue is, the grpc-netty version pulled in by bazel-common is quite old: it's the 1.2.0, released in early 2017. It pulls in io.netty:netty-codec-http2:4.1.8.Final, which has a bug (described here, fixed in early 2017 too).

Would it be possible to update the gRPC version pulled in by this repo?