Fix logout code snippet for Kotlin

[intotherealworld]

Contents

• Fix logout code snippet for Kotlin: Corrected deleteCookies syntax

Reason

• The deleteCookies property of org.springframework.security.config.annotation.web.LogoutDsl has a private access modifier, so it cannot be used in the format deleteCookies = ""

[pivotal-cla]

@intotherealworld Please sign the Contributor License Agreement!

Click here to manually synchronize the status of this Pull Request.

See the FAQ for frequently asked questions.

[pivotal-cla]

@intotherealworld Thank you for signing the Contributor License Agreement!

[rwinch]

Thanks for the Pull Request! This is now merged into main 😄