make request id const

Author: oliviamiller

src/viam/sdk/components/private/audio_in_server.cpp

@@ -18,7 +18,7 @@ ::grpc::Status AudioInServer::GetAudio(
     ::grpc::ServerWriter<::viam::component::audioin::v1::GetAudioResponse>* writer) noexcept {
     make_service_helper<AudioIn>(
         "AudioInServer::GetAudio", this, request)([&](auto& helper, auto& audio_in) {
-        std::string request_id = boost::uuids::to_string(boost::uuids::random_generator()());
+        const std::string request_id = boost::uuids::to_string(boost::uuids::random_generator()());
         auto writeChunk = [writer, context, request_id](AudioIn::audio_chunk&& chunk) {
             if (context->IsCancelled()) {
                 // send bool to tell the resource to stop calling the callback function.