Incorrect description of Passkeys webauthn

[iqolome]

Describe the bug
The document describes dependency errors related to WebAuthn

To Reproduce

Expected behavior

// Dependencies should be like this
<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-webauthn</artifactId>
</dependency>

Sample

A link to a GitHub repository with a [minimal, reproducible sample]

docs/modules/ROOT/pages/servlet/authentication/passkeys.adoc

<!-- 

// Remove this spring-boot-starter-security  Already included
<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-web</artifactId>
</dependency>

-->


// Add this   JdbcPublicKeyCredentialUserEntityRepository and JdbcUserCredentialRepository Included here
 <dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-webauthn</artifactId>
</dependency>

[rwinch]

Closed in favor of gh-18356