Fixed new `run-notebook` command for `ibisami` generated models.

Release Notes

1. This very minor change to the new IBIS-AMI model testing notebook fixes a breakage introduced w/ Rel. v6.2.1.
   In that release, the new run-notebook command fails when testing IBIS-AMI models generated using the ibisami GitHub repo..
   That breakage has been repaired in this release.

Quick Update Instructions

pip install --upgrade PyIBIS-AMI

Full Documentation

• PyIBIS-AMI on ReadTheDocs
• _PyIBIS-AMI wiki

Full Changelog: v6.2.1...v6.2.2