update OpenTelemetry dependencies and grpc

This update dropped the otelgrpc → cloud.google.com/go/compute dependency,
among others. This dropped out because genproto cleaned up it's dependencies
on google cloud libraries, and otel updated - details in #113366.

Signed-off-by: Davanum Srinivas <davanum@gmail.com>
Co-Authored-By: David Ashpole <dashpole@google.com>

vendor/github.com/grpc-ecosystem/grpc-gateway/v2/runtime/marshal_httpbodyproto.go

@@ -26,7 +26,7 @@ func (h *HTTPBodyMarshaler) ContentType(v interface{}) string {
 // google.api.HttpBody message, otherwise it falls back to the default Marshaler.
 func (h *HTTPBodyMarshaler) Marshal(v interface{}) ([]byte, error) {
 	if httpBody, ok := v.(*httpbody.HttpBody); ok {
-		return httpBody.Data, nil
+		return httpBody.GetData(), nil
 	}
 	return h.Marshaler.Marshal(v)
 }