Fix systemd seccomp test (opensearch-project#18196)

* Fix seccomp test

Signed-off-by: Rajat Gupta <gptrajat@amazon.com>

* Remove sudo su for seccomp test

Signed-off-by: Rajat Gupta <gptrajat@amazon.com>

---------

Signed-off-by: Rajat Gupta <gptrajat@amazon.com>
Co-authored-by: Rajat Gupta <gptrajat@amazon.com>

Author: RajatGupta02

qa/systemd-test/src/test/java/org/opensearch/systemdinteg/SystemdIntegTests.java

@@ -37,6 +37,7 @@
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
 
 
 public class SystemdIntegTests extends LuceneTestCase {
@@ -137,8 +138,9 @@ public void testFileDescriptorLimit() throws IOException, InterruptedException {
 
     public void testSeccompEnabled() throws IOException, InterruptedException {
         // Check if Seccomp is enabled
-        String seccomp = executeCommand("sudo su -c 'grep Seccomp /proc/" + opensearchPid + "/status'", "Failed to read Seccomp status");
-        assertFalse("Seccomp should be enabled", seccomp.contains("0"));
+        String seccomp = executeCommand("grep \"^Seccomp:\" /proc/" + opensearchPid + "/status", "Failed to read Seccomp status");
+        int seccompValue = Integer.parseInt(seccomp.split(":\\s*")[1].trim());
+        assertNotEquals("Seccomp should be enabled", 0, seccompValue);
     }
 
     public void testRebootSysCall() throws IOException, InterruptedException {