Fix VCell 'inf' comparison bug

[luciansmith]

VCell doesn't output its results for plots in the same order as other simulators, so when the comparison routine runs, it usually thinks that VCell is 'inf' away from everyone else. And it's not! This should be a relatively straightforward fix.

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()