Impossible to get the dependency of Scylla Manager HTTP client

[karol-kokoszka]

If someone wants to consume the Scylla Manager API from the go code using the client, then it's impossible to get the dependency to Scylla Manager.

It's expected to work by simply go get github.com/scylladb/scylla-manager/v3@v3.2.6, but there are hidden dependencies to the Rclone fork we store in scylladb repo -> https://github.com/scylladb/rclone.

The fork keeps the name of the original module https://github.com/scylladb/rclone/blob/71485421db4397bd0e4f9a55ba2fe3867c134cd4/go.mod#L1

Scylla Manager should not use replace directive to overwrite the RClone version, but the Scylla's fork of RClone should keep the different module name, pointing to the https://github.com/scylladb/rclone

Project with the dependency to Scylla Manager won't compile now, as there will be messed dependency to RClone.