Work Package Templates - Get All Endpoint Unmocked Tests

Blocked By #2156

We are making tests in a new way that uses an actual database rather than mocking calls to prisma. You can run these tests by running yarn test:setup, then running yarn test (make sure to run yarn test:teardown whenever you're done). You can see examples of how to do these new tests in src\backend\tests\unmocked\team-type.test.ts; however, these tests are still pretty new, so it's likely you'll have to figure out something we haven't done yet.

This ticket is to make tests of this new type for the get all work package template endpoint (create a new file for this in the unmocked tests folder if need be)

Start by reading the unmocked test example in src\backend\tests\unmocked\team-type.test.ts and the existing work package template get-all endpoint. Set up the database with yarn test:setup, run yarn test, and add coverage for the endpoint using actual database calls; run yarn test:teardown when finished.