Bump actions/upload-artifact from 3.2.1.pre.node20 to 4.4.0

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3.2.1.pre.node20 to 4.4.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3.2.1-node20...v4.4.0)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/unit-tests.yml

@@ -133,7 +133,7 @@ jobs:
             echo " " >> ../${FILENAME}
 
       - name: Upload test
-        uses: actions/upload-artifact@v3.2.1-node20
+        uses: actions/upload-artifact@v4.4.0
         with:
           name: TESTDATA
           path: data-*.teststats