Update dotnetcore.yml

Author: myloveCc

.github/workflows/dotnetcore.yml

@@ -13,8 +13,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Setup .NET Core
-      uses: actions/setup-dotnet@v1.2.3
+    - name: Setup .NET Core SDK
+      uses: actions/setup-dotnet@v2.1.0
       with:
         dotnet-version: 6.0
     - name: Install dependencies