chore(deps): update actions/upload-artifact action to v4

Author: renovate[bot]

.github/workflows/test.yml

@@ -27,7 +27,7 @@ jobs:
       - run: dotnet restore
       - run: dotnet build --configuration Release --no-restore
       - run: dotnet test --no-restore --verbosity normal --logger trx --results-directory "testresults"
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: testresults
         # Use always() to always run this step to publish test results when there are test failures