Require experiment name in AhmAnalysisJob

[larsevj]

To ensure that you choose the correct ensemble in AhmAnalysisJob it should eventually be required to pass in the experiment name in run:

class AhmAnalysisJob(SemeioScript):
    """Define ERT workflow to evaluate change of parameters for eac
    observation during history matching
    """

    def run(
        self,
        target_name="analysis_case",
        prior_name=None,
        group_by="data_key",
        output_dir=None,
    ):

[larsevj]

Also this part uses deprecated features, in AhmAnalysisJob:

        prior_name, target_name = check_names(
            self.ensemble.name,
            prior_name,
            target_name,
        )