[JAVA-31203] Upgraded spring-cloud-config to spring boot 3 (#15861)

spring-cloud-modules/spring-cloud-config/spring-cloud-config-server/src/main/java/com/baeldung/spring/cloud/config/server/SecurityConfiguration.java

@@ -2,6 +2,7 @@ package com.baeldung.spring.cloud.config.server;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.Customizer;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.web.SecurityFilterChain;
 
@@ -10,13 +11,13 @@ public class SecurityConfiguration {
 
     @Bean
     public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
-        http.csrf()
-            .ignoringAntMatchers("/encrypt/**")
-            .ignoringAntMatchers("/decrypt/**");
-        http.authorizeRequests((requests) -> requests.anyRequest()
-            .authenticated());
-        http.formLogin();
-        http.httpBasic();
+        http.csrf(csrf -> csrf.ignoringRequestMatchers(
+                "/encrypt/**", "/decrypt/**"
+            ))
+            .authorizeRequests(authz -> authz.anyRequest().authenticated())
+            .formLogin(Customizer.withDefaults())
+            .httpBasic(Customizer.withDefaults());
+
         return http.build();
     }
 }