feat: grpc runtime

[j03-dev]

Migration notes

...

• The change comes with new or modified tests
• End-user documentation is updated to reflect the change
• Hard-to-understand functions have explanatory comments

[linear]

MET-542 `GrpcRuntime`

[Natoandro]

Great work 💪

PS: If you find any way to lighten the addition of new runtimes, feel free to write an RFC ;-)

[Natoandro]

Can you update the description?

[Natoandro]

Tests required!

[michael-0acf4]

I sort of get why you went the parser way but handling things like import resolution for example is not an easy task. Adapting protobuf_parser to fit our needs might solve this. wdyt?

common.proto

syntax = "proto3";

package example;

message User {
    string name = 1;
    int32 id = 2;
}

main.proto

syntax = "proto3";

package example;

import "common.proto"; // <= here

service UserService {
    rpc listAll(User) returns (User);
}

[Natoandro]

Great job 👍

[michael-0acf4]

Can be merged as a first iteration👍
lgtm

[Natoandro]

Great 👍

Waiting for the tests to pass...