ssh: fix ~ on Docker transport Copy

pkg/agent/transport/docker/transport.go

@@ -384,6 +384,10 @@ func (t *dockerTransport) Copy(localPath, remoteName string) error {
 		}
 	}
 
+	// Since we know the home directory via probing, trim ~/ from the remote name
+	// if it was included.
+	remoteName = strings.TrimPrefix(remoteName, "~/")
+
 	// Compute the path inside the container. We don't bother trimming trailing
 	// slashes from the home directory, because both Windows and POSIX will work
 	// in their presence. The only case on Windows where \\ has special meaning