instrumentation-grpc using deprecated npm module 'grpc'

[monaghancj]

Please answer these questions before submitting a bug report.

What version of OpenCensus are you using?

@opencensus/nodejs@0.1.0

What version of Node are you using?

v18.0.0

What did you do?

If possible, provide a recipe for reproducing the error.
npm i @opencensus/instrumentation-grpc

What did you expect to see?

Use of @grpc/grpc-js

What did you see instead?

grpc

Additional context

This library is deprecated and has a recommended replacement (@grpc/grpc-js).