fix: use IdleConnTimeout/ConnectTimeout

This is an attempt to set sensible timeouts on abra connections. This
might not be the last word on this but it seems that SSH connections now
bail out correctly and other kinds of commands don't explode (e.g.
logs).

Closes coop-cloud/organising#222.
Closes coop-cloud/organising#218.

pkg/client/context.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"fmt"
 
+	commandconnPkg "coopcloud.tech/abra/pkg/upstream/commandconn"
 	command "github.com/docker/cli/cli/command"
 	dConfig "github.com/docker/cli/cli/config"
 	context "github.com/docker/cli/cli/context"
@@ -44,7 +45,7 @@ func createContext(name string, host string) error {
 		Endpoints: make(map[string]contextStore.EndpointTLSData),
 	}
 
-	dockerEP, dockerTLS, err := getDockerEndpointMetadataAndTLS(host)
+	dockerEP, dockerTLS, err := commandconnPkg.GetDockerEndpointMetadataAndTLS(host)
 	if err != nil {
 		return err
 	}