Fix the temp location manager on J9

(due to a different mechanism to retrieve running JVM processes)

Author: jbachorik

dd-java-agent/agent-profiling/profiling-controller/src/main/java/com/datadog/profiling/controller/TempLocationManager.java

@@ -107,7 +107,8 @@ public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)
       // the JFR repository directories are under <basedir>/pid_<pid>
       String pid = fileName.startsWith("pid_") ? fileName.substring(4) : null;
       boolean isSelfPid = pid != null && pid.equals(PidHelper.getPid());
-      shouldClean |= (cleanSelf && isSelfPid) || (!cleanSelf && !pidSet.contains(pid));
+      shouldClean |=
+          (cleanSelf && isSelfPid) || (!cleanSelf && !isSelfPid && !pidSet.contains(pid));
       if (shouldClean) {
         log.debug("Cleaning temporary location {}", dir);
       }