Restore shouldNotRegisterStructuredLoggingJsonMembersCustomizerRuntimeHints()

See gh-44014

Signed-off-by: Johnny Lim <izeye@naver.com>

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/logging/structured/StructuredLoggingJsonMembersCustomizerBeanFactoryInitializationAotProcessorTests.java

@@ -62,6 +62,13 @@ class StructuredLoggingJsonMembersCustomizerBeanFactoryInitializationAotProcesso
 			.accepts(hints);
 	}
 
+	@Test
+	void shouldNotRegisterStructuredLoggingJsonMembersCustomizerRuntimeHintsWhenPropertiesAreNotSet() {
+		MockEnvironment environment = new MockEnvironment();
+		BeanFactoryInitializationAotContribution contribution = getContribution(environment);
+		assertThat(contribution).isNull();
+	}
+
 	@Test
 	void shouldNotRegisterStructuredLoggingJsonMembersCustomizerRuntimeHintsWhenCustomizerIsNotSet() {
 		MockEnvironment environment = new MockEnvironment();