Add Passkeys webauthn in example

Signed-off-by: Tran Ngoc Nhan <ngocnhan.tran1996@gmail.com>

Author: ngocnhan-tran1996

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

@@ -28,6 +28,10 @@ Maven::
     <groupId>org.springframework.security</groupId>
     <artifactId>spring-security-web</artifactId>
 </dependency>
+<dependency>
+    <groupId>org.springframework.security</groupId>
+    <artifactId>spring-security-webauthn</artifactId>
+</dependency>
 <dependency>
     <groupId>com.webauthn4j</groupId>
     <artifactId>webauthn4j-core</artifactId>
@@ -41,6 +45,7 @@ Gradle::
 ----
 dependencies {
     implementation "org.springframework.security:spring-security-web"
+    implementation "org.springframework.security:spring-security-webauthn"
     implementation "com.webauthn4j:webauthn4j-core:{webauthn4j-core-version}"
 }
 ----