This would have to be a manual setting, we set before execution in chrome. Unless we are able to launch chrome in the specific language using the command line for example.
The language Chrome is set in, is what will launch. So to change it, we would go into the chrome settings > advanced > languages > (select or add the language you need). https://support.google.com/chrome/answer/173424?hl=en&co=GENIE.Platform%3DDesktop