actions/upload-artifact@v4 (#19)

Author: rneeft

.github/workflows/dotnet.yml

@@ -36,7 +36,7 @@ jobs:
       run: dotnet pack -o '${{github.workspace}}/nupkg'
 
     - name: Publish App disk artifact
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: Code
         path: nupkg