Update version of Pulsar test container image

This commit updates the version of the Pulsar container from 3.2.4 to
3.3.3 (the recommended version in the Spring Boot 3.4.x line).

See gh-43534

Author: onobc

spring-boot-project/spring-boot-tools/spring-boot-test-support-docker/src/main/java/org/springframework/boot/testsupport/container/TestImage.java

@@ -206,7 +206,7 @@ public enum TestImage {
 	/**
 	 * A container image suitable for testing Pulsar.
 	 */
-	PULSAR("apachepulsar/pulsar", "3.2.4", () -> PulsarContainer.class,
+	PULSAR("apachepulsar/pulsar", "3.3.3", () -> PulsarContainer.class,
 			(container) -> ((PulsarContainer) container).withStartupAttempts(2)
 				.withStartupTimeout(Duration.ofMinutes(3))),