move test checkbox out of public change section

.github/pull_request_template.md

@@ -14,9 +14,9 @@ This PR addresses ...
 
 <!-- if you can't perform these tasks due to permissions, please ask a maintainer to do them -->
 ## Tasks
+- [ ] update or add relevant tests
 - [ ] Does this PR change user-facing code / API? (if not, label with `no-changelog-entry-needed`)
   - [ ] write news fragment(s) in `changes/`: `echo "changed something" > changes/<PR#>.<changetype>.rst` (see below for change types)
-  - [ ] update or add relevant tests
   - [ ] update relevant docstrings and / or `docs/` page
   - [ ] run regression tests with this branch installed (`"git+https://github.com/<fork>/stcal@<branch>"`)
     - [ ] [`jwst` regression test](https://github.com/spacetelescope/RegressionTests/actions/workflows/jwst.yml)