Update trait-weather models in synthesis vignette once trait data is updated

[KristinaRiemer]

[KristinaRiemer]

Data is apparently still not ready.

[KristinaRiemer]

Trait data appears to still not be updated.

[dlebauer]

Did you try Season 6 / 2018 canopy cover? It should be available.

[KristinaRiemer]

When I ran lines 29-34 from your first commit from 95b42c9, there was canopy cover data from May, June, and July, but there was no corresponding weather data for those dates. It's the same when pulling data from season 6 instead of using the year. 🤷‍♀