chore(devops): add request processing timeout

[neSpecc]

If API request requires too much time to be processed, it should be cancelled by timeout.

This will help API to stay working when some client requests is too long for some reason.

Let's use 10 seconds as default timeout value.

This value should be configurable.

Optional: if request is cancelled by timeout, write corresponded log to the console.

[neSpecc]

See connect-timeout readme:

While the library will emit a 'timeout' event when requests exceed the given timeout, node will continue processing the slow request until it terminates. Slow requests will continue to use CPU and memory, even if you are returning a HTTP response in the timeout callback. For better control over CPU/memory, you may need to find the events that are taking a long time (3rd party HTTP requests, disk I/O, database calls) and find a way to cancel them, and/or close the attached sockets.