Updates build.gradle to conditionally download certificates (#1517) (#1519)

(cherry picked from commit f5e9ff7)

Signed-off-by: Darshit Chanpura <dchanp@amazon.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: opensearch-trigger-bot[bot]

build.gradle

@@ -226,15 +226,18 @@ ext {
     licenseFile = rootProject.file('LICENSE.txt')
     noticeFile = rootProject.file('NOTICE.txt')
 
-    ['esnode.pem', 'esnode-key.pem', 'kirk.pem', 'kirk-key.pem', 'root-ca.pem', 'sample.pem', 'test-kirk.jks'].forEach { file ->
-        File local = getLayout().getBuildDirectory().file(file).get().getAsFile()
-        download.run {
-            src "https://raw.githubusercontent.com/opensearch-project/security/refs/heads/main/bwc-test/src/test/resources/security/" + file
-            dest local
-            overwrite false
-        }
-        processResources {
-            from(local)
+    runIntegTestWithSecurityPlugin= System.getProperty("security")
+    if (runIntegTestWithSecurityPlugin == "true") {
+        ['esnode.pem', 'esnode-key.pem', 'kirk.pem', 'kirk-key.pem', 'root-ca.pem', 'sample.pem', 'test-kirk.jks'].forEach { file ->
+            File local = getLayout().getBuildDirectory().file(file).get().getAsFile()
+            download.run {
+                src "https://raw.githubusercontent.com/opensearch-project/security/refs/heads/main/bwc-test/src/test/resources/security/" + file
+                dest local
+                overwrite false
+            }
+            processResources {
+                from(local)
+            }
         }
     }
 }