Test against models Vec3/list patch

[mattwthompson]

Context https://github.com/openforcefield/openff-models/pull/36

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (24e3f12) 98.93% compared to head (604ef15) 98.93%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #284 +/- ## ======================================= Coverage 98.93% 98.93% ======================================= Files 36 36 Lines 1969 1969 ======================================= Hits 1948 1948 Misses 21 21 ```

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[mattwthompson]

Cool, no surprises here