[NodeJS]dependency grpc is old,need update

[alanlvle]

grpc npm homepage:
https://www.npmjs.com/package/grpc

info:
This library will not receive further updates other than security fixes. We recommend using @grpc/grpc-js instead

we company use @grpc/grpc-js,SkyWalking NodeJS can update?

Tks

[wu-sheng]

You could send a pull request to update. We will help on reviewing.

[alanlvle]

i try to do it .
apache/skywalking-nodejs#65