Move jedi run directory to addon drive, set environment variable JEDI_ENV once at top in github actions

[climbfuji]

Description

See title.

Issue(s) addressed

Resolves https://github.com/JCSDA/ufs-bundle/issues/66

Dependencies

n/a

Impact

Helps avoid CI errors in this repo and many others

Checklist

• [x] I have performed a self-review of my own code
• [ ] I have made corresponding changes to the documentation
• [ ] I have run the unit tests before creating the PR

[climbfuji]

Good call.

Thanks for the quick review. Merging this now so that future nightly CI runs won't populate the old directory again