chore(deps): update dependency cloudnative.cloudevents.newtonsoftjson to v2.6.0

Author: renovate-bot

examples/Google.Cloud.Functions.Examples.CustomEventDataFunction/Google.Cloud.Functions.Examples.CustomEventDataFunction.csproj

@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Google.Cloud.Functions.Hosting" Version="2.0.0" />
-    <PackageReference Include="CloudNative.CloudEvents.NewtonsoftJson" Version="2.5.1" />
+    <PackageReference Include="CloudNative.CloudEvents.NewtonsoftJson" Version="2.6.0" />
     <None Include="appsettings*.json" CopyToOutputDirectory="PreserveNewest" />
   </ItemGroup>
 </Project>