Fix deprecated apply call in SecurityConfig (#931)

* replace deprecated HttpSecurity.apply() call with HttpSecurity.with() as suggested in the deprecation message
  https://docs.spring.io/spring-security/site/docs/6.5.x/api/org/springframework/security/config/annotation/AbstractConfiguredSecurityBuilder.html#apply(C)

* add note about Customizer.withDefaults()

  'Customizer.withDefaults() enables a security feature using the defaults provided by Spring Security. This is a shortcut for the lambda expression it -> {}.'
  https://docs.spring.io/spring-security/reference/6.5/migration-7/configuration.html#_use_the_lambda_dsl

Author: dennisvang

src/main/java/org/fairdatateam/fairdatapoint/config/SecurityConfig.java

@@ -74,7 +74,8 @@ public SecurityFilterChain filterChain(HttpSecurity http, FilterConfigurer filte
                 // Spring Security will use CORS configuration provided to Spring MVC."
                 // https://docs.spring.io/spring-security/reference/servlet/integrations/cors.html#cors-spring-mvc-integration
                 .cors(Customizer.withDefaults())
-                .apply(filterConfigurer);
+                // "Customizer.withDefaults() [...] is a shortcut for the lambda expression it -> {}."
+                .with(filterConfigurer, Customizer.withDefaults());
         return http.build();
     }
 }