Adding User Agent to HTTP Logs

[nicolastakashi]

Is your proposal related to a problem?

Add the User-Agent information to the Request Logs

Describe the solution you'd like

Add the User-Agent information to the Request Logs

Describe alternatives you've considered

N/A

Additional context

When you have many different users consuming Thanos Query or Query Front-End is very useful to have the user agent to identify who's the owner of the request.