Provide a consistent gRPC interface for client streaming requests with stdout/stderr

[dankeboy36]

Describe the request

Please provide a consistent gRPC interface for client streaming requests with stdout/stderr.

Clients have to use two different styles of APIs:

1. out_stream AND err_stream are optionally part of every response chunk:

   1. Compile (CompileResponse):

      arduino-cli/rpc/cc/arduino/cli/commands/v1/compile.proto

      Lines 99 to 103 in 77222ec

      	message CompileResponse {
      	// The output of the compilation process (stream)
      	bytes out_stream = 1;
      	// The error output of the compilation process (stream)
      	bytes err_stream = 2;

   2. Upload using a programmer (UploadUsingProgrammerResponse):

      arduino-cli/rpc/cc/arduino/cli/commands/v1/upload.proto

      Lines 120 to 125 in 77222ec

      	message UploadUsingProgrammerResponse {
      	// The output of the upload process.
      	bytes out_stream = 1;
      	// The error output of the upload process.
      	bytes err_stream = 2;
      	}

   3. Burn bootload (BurnBootloaderResponse):

      arduino-cli/rpc/cc/arduino/cli/commands/v1/upload.proto

      Lines 152 to 157 in 77222ec

      	message BurnBootloaderResponse {
      	// The output of the burn bootloader process.
      	bytes out_stream = 1;
      	// The error output of the burn bootloader process.
      	bytes err_stream = 2;
      	}

2. out_stream OR err_stream OR the result is part of the response message:

   1. Upload (UploadResponse):

      arduino-cli/rpc/cc/arduino/cli/commands/v1/upload.proto

      Lines 64 to 73 in 77222ec

      	message UploadResponse {
      	oneof message {
      	// The output of the upload process.
      	bytes out_stream = 1;
      	// The error output of the upload process.
      	bytes err_stream = 2;
      	// The upload result
      	UploadResult result = 3;
      	}
      	}

Providing the same dev experience for "similar" APIs would be highly appreciated downstream. Thank you!

Describe the current behavior

There is no consistent API for client streaming requests with stdout/stderr props.

Arduino CLI version

0.35.0-rc.7

Operating system

N/A

Operating system version

n/a

Additional context

No response

Issue checklist

• I searched for previous requests in the issue tracker
• I verified the feature was still missing when using the nightly build
• My request contains all necessary details