Update samples to use Spring Security 6

Issue gh-46

servlet/spring-boot/kotlin/hello-security/build.gradle.kts

@@ -1,8 +1,8 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-    id("org.springframework.boot") version "2.5.0"
-    id("io.spring.dependency-management") version "1.0.9.RELEASE"
+    id("org.springframework.boot") version "3.0.0-M1"
+    id("io.spring.dependency-management") version "1.0.11.RELEASE"
     kotlin("jvm") version "1.6.0"
     kotlin("plugin.spring") version "1.6.0"
 }
@@ -12,15 +12,16 @@ repositories {
     maven {
         url = uri("https://repo.spring.io/snapshot")
     }
+    maven {
+        url = uri("https://repo.spring.io/milestone")
+    }
 }
 
 dependencies {
-    implementation("org.jetbrains.kotlin:kotlin-reflect")
-    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
     implementation("org.springframework.boot:spring-boot-starter-security")
     implementation("org.springframework.boot:spring-boot-starter-thymeleaf")
     implementation("org.springframework.boot:spring-boot-starter-web")
-    implementation("org.thymeleaf.extras:thymeleaf-extras-springsecurity5")
+    implementation("org.thymeleaf.extras:thymeleaf-extras-springsecurity6")
     testImplementation("org.springframework.boot:spring-boot-starter-test")
     testImplementation("org.springframework.security:spring-security-test")
 }

servlet/spring-boot/kotlin/hello-security/gradle.properties

@@ -1 +1 @@
-spring-security.version=5.6.0-SNAPSHOT
+spring-security.version=6.0.0-SNAPSHOT

servlet/spring-boot/kotlin/hello-security/src/main/kotlin/org/springframework/security/samples/config/SecurityConfig.kt

@@ -19,7 +19,6 @@ package org.springframework.security.samples.config
 import org.springframework.context.annotation.Bean
 import org.springframework.security.config.annotation.web.builders.HttpSecurity
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity
-import org.springframework.security.config.web.servlet.invoke
 import org.springframework.security.core.userdetails.User
 import org.springframework.security.core.userdetails.UserDetailsService
 import org.springframework.security.provisioning.InMemoryUserDetailsManager
@@ -33,15 +32,11 @@ class SecurityConfig {
 
     @Bean
     fun filterChain(http: HttpSecurity): SecurityFilterChain {
-        http {
-            authorizeRequests {
-                authorize("/css/**", permitAll)
-                authorize("/user/**", hasAuthority("ROLE_USER"))
-            }
-            formLogin {
-                loginPage = "/log-in"
-            }
-        }
+        http.authorizeRequests()
+            .antMatchers("/css/**").permitAll()
+            .antMatchers("/user/**").hasAuthority("ROLE_USER")
+            .and()
+            .formLogin().loginPage("/log-in")
         return http.build()
     }