Add Support ServerGenerateOneTimeTokenRequestResolver

Closes gh-16488

Signed-off-by: Max Batischev <mblancer@mail.ru>

docs/modules/ROOT/pages/reactive/authentication/onetimetoken.adoc

@@ -546,3 +546,35 @@ class MagicLinkOneTimeTokenGenerationSuccessHandler(val mailSender: MailSender):
 
 ----
 ======
+
+[[customize-generate-token-request]]
+== Customize GenerateOneTimeTokenRequest Instance
+There are a number of reasons that you may want to adjust an GenerateOneTimeTokenRequest. For example, you may want expiresIn to be set to 10 mins, which Spring Security sets to 5 mins by default.
+
+You can customize elements of GenerateOneTimeTokenRequest by publishing an ServerGenerateOneTimeTokenRequestResolver as a @Bean, like so:
+[tabs]
+======
+Java::
++
+[source,java,role="primary"]
+----
+@Bean
+ServerGenerateOneTimeTokenRequestResolver generateOneTimeTokenRequestResolver() {
+    DefaultServerGenerateOneTimeTokenRequestResolver resolver = new DefaultServerGenerateOneTimeTokenRequestResolver();
+    resolver.setExpiresIn(Duration.ofSeconds(600));
+    return resolver;
+}
+----
+
+Kotlin::
++
+[source,kotlin,role="secondary"]
+----
+@Bean
+fun generateOneTimeTokenRequestResolver() : ServerGenerateOneTimeTokenRequestResolver {
+    return DefaultServerGenerateOneTimeTokenRequestResolver().apply {
+        this.setExpiresIn(Duration.ofMinutes(10))
+    }
+}
+----
+======