[chore] move struct to internal, do not expose in API

Author: github-actions[bot]

receiver/fluentforwardreceiver/ack.go renamed to receiver/fluentforwardreceiver/internal/ack.go

@@ -1,7 +1,7 @@
 // Copyright The OpenTelemetry Authors
 // SPDX-License-Identifier: Apache-2.0
 
-package fluentforwardreceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/fluentforwardreceiver"
+package internal // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/fluentforwardreceiver"
 
 import "github.com/tinylib/msgp/msgp"
 

receiver/fluentforwardreceiver/ack_test.go renamed to receiver/fluentforwardreceiver/internal/ack_test.go

@@ -1,7 +1,7 @@
 // Copyright The OpenTelemetry Authors
 // SPDX-License-Identifier: Apache-2.0
 
-package fluentforwardreceiver
+package internal
 
 import (
 	"bytes"

receiver/fluentforwardreceiver/server.go

@@ -8,6 +8,7 @@ import (
 	"encoding/binary"
 	"errors"
 	"fmt"
+	"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/fluentforwardreceiver/internal"
 	"io"
 	"net"
 	"time"
@@ -125,7 +126,7 @@ func (s *server) handleConn(ctx context.Context, conn net.Conn) error {
 		// messages -- this is the only thing that sends data back to the
 		// client.
 		if event.Chunk() != "" {
-			err := msgp.Encode(conn, AckResponse{Ack: event.Chunk()})
+			err := msgp.Encode(conn, internal.AckResponse{Ack: event.Chunk()})
 			if err != nil {
 				return fmt.Errorf("failed to acknowledge chunk %s: %w", event.Chunk(), err)
 			}