Use explicit matchers following Spring Security 6.0.5 upgrade

See gh-36293

Author: philwebb

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-actuator-custom-security/src/main/java/smoketest/actuator/customsecurity/SecurityConfiguration.java

@@ -66,8 +66,8 @@ SecurityFilterChain configure(HttpSecurity http, HandlerMappingIntrospector hand
 			requests.requestMatchers(EndpointRequest.toAnyEndpoint().excluding(MappingsEndpoint.class))
 				.hasRole("ACTUATOR");
 			requests.requestMatchers(PathRequest.toStaticResources().atCommonLocations()).permitAll();
-			requests.requestMatchers("/foo").permitAll();
-			requests.requestMatchers(new AntPathRequestMatcher("/error")).permitAll();
+			requests.requestMatchers(new AntPathRequestMatcher("/foo")).permitAll();
+			requests.requestMatchers(new MvcRequestMatcher(handlerMappingIntrospector, "/error")).permitAll();
 			requests.requestMatchers(new AntPathRequestMatcher("/**")).hasRole("USER");
 		});
 		http.cors(Customizer.withDefaults());