Don't put failed simulator results in heat map

[luciansmith]

When a simulator fails, it somehow gets results in the heat map.

from biosim_client.verify.biosim_client import BiosimClient

simulators = ["amici", "copasi", "pysces", "tellurium", "vcell"]
omex_file = "https://github.com/sys-bio/temp-biomodels/raw/refs/heads/main/omex_files/BIOMD0000000412.omex"
verify_results_1 = BiosimClient().compare_omex(omex_source=omex_file, simulators=simulators)
verify_results_1.show_report()
verify_results_1.show_saved_plots()
verify_results_1.show_dataset_heatmaps()

gives us heat maps like:

which is mysterious; I have no idea where the values for the failed simulators are coming from (amici and pysces)