Continue removing expired compose despite the error in `shutil.rmtree`.
    
    The current code simply throws an exception on any error in `shutil.rmtree`
    and stops removing expired composes completely. The error can for example
    be "Permission denied" when some files in compose directory are owned
    by root:root as a result of issue with runroot tasks execution.
    
    In this commit, such errors are logged, but the rmtree execution continues
    and removes as much composes/files as it can.