Ensure that run mojo's child process is killed when Maven is killed

Fixes gh-32607

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/JavaProcessExecutor.java

@@ -65,6 +65,7 @@ class JavaProcessExecutor {
 	int run(File workingDirectory, List<String> args, Map<String, String> environmentVariables)
 			throws MojoExecutionException {
 		RunProcess runProcess = new RunProcess(workingDirectory, getJavaExecutable());
+		this.runProcessCustomizer.accept(runProcess);
 		try {
 			int exitCode = runProcess.run(true, args, environmentVariables);
 			if (!hasTerminatedSuccessfully(exitCode)) {