daemon/worker: adjust tcp timeouts

This is an attempt to fix two problems:
1. kresd tries to close incoming TCP connection too early. This may lead
to multiple client reconnections. This problem primarily
affects TCP/TLS clients who send several queries over single TCP connection.

2. In certain circumstances outbound TCP connection doesn't timeout
despite that fact that upstream doesn't send back any answers.
This may lead to timeouts on non-problematic queries.