Detect tls stream and use https scheme instead of provided tcp

[LucioFranco]

When attempting to use shiplift in a circleci environment with hyper, it must use tcp to connect to the remote docker daemon. This requires tls via the docker docs. The issue arises here https://github.com/softprops/shiplift/blob/master/src/transport.rs#L166 when the tcp:// scheme is copied. The real problem is that hyper's version checking requires the use of https instead of tcp directly. Thus the fix here is to replace the scheme only when encrypted.

Reference failing tests in vectordotdev/vector#787

[elihunter173]

Should this issue still be open?

[LucioFranco]

I think its been fixed!