serverResponseTimeout is used only in keyserver/src/socket/socket.js, and is the time before the keyserver will time out a Websocket connection with a client.

This change brings it in line with clientRequestSocketTimeout, which is the client's timeout for a Websocket connection to the keyserver.

I've had this change for some time on my production keyserver and never diffed it up for some reason.

Been running it in production for some time