Fix timeout handling and require Node.js 10

[himanshumehta1114]

Now, is-reachable won't hang on passing URL which resolves DNS but does not gives any response.

fixes #47

[himanshumehta1114]

https://github.com/sindresorhus/got/blob/cf4fdad553f4bec82a9972dda40f5762f8c70c6d/package.json#L10

The latest version of got supports node >= 10. So can we update node version in is-reachable as well ?
Got is dependency of is-reachable so it fails on node v8.

[sindresorhus]

So can we update node version in is-reachable as well ?

👍🏻

[himanshumehta1114]

@silverwind @sindresorhus can we merge this?

[jkff]

Is there a reason why we need to disable retries here? This is a pretty draconian way to check that a URL is reachable - many failures, such as ECONNRESET, can be intermittent.

I hit this while using another CLI tool that uses this library and refuses to do anything if one of the services it wants is "unreachable". The service gives me a ECONNRESET about 20% of the time, meaning, I need a retry loop around invoking the whole tool.