Update notebooks to fix failing runs after breaking updates to HOOMD

[joaander]

Description

Use keyword arguments to both make the code more clear and fix the notebooks that do not execute after moving the trigger argument.

Checklist:

• [x] I have reviewed the Contributor Guidelines.
• [x] I agree with the terms of the HOOMD-blue Contributor Agreement.
• [x] My name is on the list of authors.

[review-notebook-app[bot]]

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[joaander]

Merging now as this fixes CI build failures that are causing problems on other pull requests.