Deprecating run() without any arguments

[MargaretDuff]

Description

Using algo.run() gives a deprecation warning but will still run, I think up to some internal max_iterations if it exists

As we have deprecated max_iterations which raises an error if passed, I think it makes more sense to raise an error with a note that it has been deprecated and they must pass a number of iterations to run.

This was discussed at the events and engagement meeting this week

Environment

import cil, sys
print(cil.version.version, cil.version.commit_hash, sys.version, sys.platform)