Upgrade to DBT 1.8

[0xRobin]

Hey magnificent wizards,

we have upgraded to dbt 1.8! 🥳
This should not impact spell contributions much, but it's best to make sure your local environment is running on all the same versions.

The advised way to update this is:

pipenv clean
pipenv sync

And then also

dbt clean
dbt deps

If you have any current open PRs, make sure to merge in main to pull in any syntax changes from the 1.7 -> 1.8 upgrade.
You can read more about the changes (and migration) in the dbt documentation