google.cloud.texttospeech.v1.TextToSpeech timeout error

Hello,

I have the NodeJS @google-cloud/text-to-speech library in use. Locally I have no problems generating text to audio. But when I build the application as a Docker image and run it on my server, I always get the following error after a long time. NodeJS version is the same.

What is the reason for this?

```
GoogleError: Total timeout of API google.cloud.texttospeech.v1.TextToSpeech exceeded 300000 milliseconds before any response was received.
at repeat (/data/node_modules/google-gax/build/src/normalCalls/retries.js:66:31)
at Timeout._onTimeout (/data/node_modules/google-gax/build/src/normalCalls/retries.js:101:25)
at listOnTimeout (node:internal/timers:559:17)
at processTimers (node:internal/timers:502:7) {
code: 4
}
```