Describe the improvement

My local setup requires using DOCKER_HOST=tcp://localhost:2375. Such configuration can not be used with shuttle run command at least for versions 0.51.0, because it relies on connect_with_local_defaults method, that uses unix sockets for unix and named pipe for windows. bollard crate (starting from version 0.16.0) has connect_with_defaults method, that tries all possible variants of DOCKER_HOST value types (sockets, named pipes, http, https).

I suggest updating to the latest version of bollard crate

- bollard = "0.15.0"
+ bollard = { version = "0.18.1", features = ["ssl_providerless"] }

replace calls of connect_with_local_defaults to connect_with_defaults to fix cases when DOCKER_HOST is set up as tcp/http/https
replace calls of connect_with_unix to connect_with_socket, because it was renamed

Duplicate declaration

• I have searched the issues and this improvement has not been requested before.