bump dotnet build version;

Author: Jack-Keene

.github/workflows/build.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
-      - uses: actions/setup-dotnet@v3
+      - uses: actions/setup-dotnet@v4
         with:
           dotnet-version: '5.0.x'