NSHM Gradle Download

Update to only download NSHMs on unit test.

Make sure they do not download each Gradle task.

changed milestone to %NSHMP Sprint: 01/05/2023 - 01/27/2023

added To Do label

assigned to @bclayton

added In Progress label and removed To Do label

mentioned in merge request !689 (merged)

mentioned in commit 3a88f7bf

closed with merge request !689 (merged)

removed In Progress label