[receiver/journald] use ErrorIs in assertion (open-telemetry#43905)

Ensure the returned error includes signal not supported.

Signed-off-by: alex boten <[email protected]>

Author: codeboten

receiver/journaldreceiver/factory_test.go

@@ -46,7 +46,7 @@ func TestCreateAndShutdown(t *testing.T) {
 		assert.NoError(t, receiver.Shutdown(ctx))
 	} else {
 		assert.Error(t, err)
-		assert.IsType(t, pipeline.ErrSignalNotSupported, err)
+		assert.ErrorIs(t, err, pipeline.ErrSignalNotSupported)
 		assert.Nil(t, receiver)
 	}
 }

receiver/journaldreceiver/journald_nonlinux.go

@@ -11,6 +11,7 @@ import (
 
 	"go.opentelemetry.io/collector/component"
 	"go.opentelemetry.io/collector/consumer"
+	"go.opentelemetry.io/collector/pipeline"
 	"go.opentelemetry.io/collector/receiver"
 
 	"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/stanza/adapter"
@@ -33,5 +34,5 @@ func createLogsReceiver(
 	_ component.Config,
 	_ consumer.Logs,
 ) (receiver.Logs, error) {
-	return nil, errors.New("journald is only supported on linux")
+	return nil, errors.Join(errors.New("journald is only supported on linux"), pipeline.ErrSignalNotSupported)
 }