Update main.yml

Author: jcdutton

.github/workflows/main.yml

@@ -34,7 +34,7 @@ jobs:
           & "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" --build . --config RelWithDebInfo --parallel
 
       - name: Upload Build Artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ectool
           path: |