update min number of replicas to 0 (#1364) (#1370)

(cherry picked from commit b185440)

Signed-off-by: Subhobrata Dey <sbcd90@gmail.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>

src/main/java/org/opensearch/securityanalytics/settings/SecurityAnalyticsSettings.java

@@ -12,7 +12,7 @@
 
 public class SecurityAnalyticsSettings {
     public static final String CORRELATION_INDEX = "index.correlation";
-    public static final int minSystemIndexReplicas = 1;
+    public static final int minSystemIndexReplicas = 0;
     public static final int maxSystemIndexReplicas = 20;
 
     public static Setting<TimeValue> INDEX_TIMEOUT = Setting.positiveTimeSetting("plugins.security_analytics.index_timeout",