Update example packages (#183)

Author: sungam3r

src/BasicSample/BasicSample.csproj

@@ -12,7 +12,7 @@
 
   <ItemGroup>
     <PackageReference Include="GraphQL.SystemTextJson" Version="5.0.0-preview-362" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="5.0.1" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="6.0.0" />
   </ItemGroup>
 
 </Project>

src/Harness/Harness.csproj

@@ -9,10 +9,10 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="GraphQL.Server.Transports.AspNetCore.SystemTextJson" Version="5.0.1" />
-    <PackageReference Include="GraphQL.Server.Ui.GraphiQL" Version="5.0.1" />
-    <PackageReference Include="GraphQL.Server.Ui.Playground" Version="5.0.1" />
-    <PackageReference Include="GraphQL.Server.Transports.AspNetCore" Version="5.0.1" />
+    <PackageReference Include="GraphQL.Server.Transports.AspNetCore.SystemTextJson" Version="5.1.1" />
+    <PackageReference Include="GraphQL.Server.Ui.GraphiQL" Version="5.1.1" />
+    <PackageReference Include="GraphQL.Server.Ui.Playground" Version="5.1.1" />
+    <PackageReference Include="GraphQL.Server.Transports.AspNetCore" Version="5.1.1" />
   </ItemGroup>
 
 </Project>