chore(tox): Fetch templates before running parallel jobs

Author: effigies

tox.ini

@@ -51,6 +51,8 @@ deps =
   min: tedana == 23.0.2
   min: templateflow == 24.1.0
 
+commands_pre =
+  python scripts/fetch_templates.py
 commands =
   pytest --cov-report term-missing --durations=20 --durations-min=1.0 {posargs:-n auto}