Update nuget.yml

Author: w-itidea

.github/workflows/nuget.yml

@@ -21,7 +21,7 @@ jobs:
     - name: Install .NET
       uses: actions/[email protected]
       with:
-        dotnet-version: 6.0.x
+        dotnet-version: 7.0.x
 
     - name: Restore dependencies
       run: dotnet restore