Disable LoaderIntegrationTests on Java 19 till it GAs

See gh-32280

Author: wilkinsona

spring-boot-tests/spring-boot-integration-tests/spring-boot-loader-tests/src/intTest/java/org/springframework/boot/loader/LoaderIntegrationTests.java

@@ -46,6 +46,7 @@
  * @author Phillip Webb
  */
 @DisabledIfDockerUnavailable
+@EnabledForJreRange(max = JRE.JAVA_18)
 class LoaderIntegrationTests {
 
 	private final ToStringConsumer output = new ToStringConsumer();