otlpreceiver is not throwing a valid gRPC Status for successful scenarios or authentication-related errors

[shalithakaru]

Describe the bug
OTLP receiver is not throwing a valid gRPC Status for successful scenarios or authentication-related errors.

Steps to reproduce

1. Enable the OTLP receiver configuration as below for the Collector
   (Please note you need this extension to enable authentication with the receiver)

receivers:
  otlp:
    protocols:
      grpc:
        auth:
          authenticator: oidc
      http: 
        auth: 
          authenticator: oidc

2. Send sample traces to the collector endpoints in each port using both HTTP and gRPC SDK implementations with a sample JWT tokens.
   OTLP/HTTP is 4318
   OTLP/gRPC is 4317

What did you expect to see?
gRPC Status:16 for unauthenticated requests and gRPC Status:0 for successful authentication.

What did you see instead?
HTTP will throw proper status codes like 401(Unauthorized) for errors and 200 for successful authentication.
But with gRPC, it will throw gRPC Status:2 for errors and nothing for successful authentication.

What version did you use?
Version: v0.76.1

What config did you use?
Config: N/A

Environment
N/A

Additional context
Temporary fix for error scenarios

errNoAudienceProvided = errors.New("no Audience provided for the OIDC configuration")
....

to

import (
        ....
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

errNoAudienceProvided = status.Error(codes.Unauthenticated, "failed to verify the token")
....

Suggestion: I think it's better if we can fix interceptors in configgrpc similar to confighttp interceptor

I was not able to find a any solution for the successful scenario