Update GitHub action to deploy using net8.0 instead of depricated net6

Author: tristanjthompson

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v2
       with:
-        dotnet-version: 6.0.x
+        dotnet-version: 8.0.x
 
     - name: Build project
       run: dotnet build src\ModelsBuilder.PropertyOverride\ModelsBuilder.PropertyOverride.csproj --configuration Release