Update actions/upload-artifact action to v5 (#152)

Author: phnx47-bot

.github/workflows/ci.yml

@@ -39,7 +39,7 @@ jobs:
         run: dotnet pack -p:PackageVersion="${{ env.VERSION }}" -o packages
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: packages
           path: packages/*nupkg