Update cookie.md

Moved include to within .NET 10 moniker range.

Author: wadepickett

aspnetcore/security/authentication/cookie.md

@@ -19,7 +19,9 @@ By [Rick Anderson](https://twitter.com/RickAndMSFT)
 
 For demonstration purposes in the sample app, the user account for the hypothetical user, Maria Rodriguez, is hardcoded into the app. Use the **Email** address `maria.rodriguez@contoso.com` and any password to sign in the user. The user is authenticated in the `AuthenticateUser` method in the `Pages/Account/Login.cshtml.cs` file. In a real-world example, the user would be authenticated against a datastore.
 
+:::moniker range=">= aspnetcore-10.0"
 [!INCLUDE[](~/includes/api-endpoint-auth.md)]
+:::moniker-end
 
 ## Add cookie authentication