Enable Mend Renovate in Whitesource settings (opensearch-project#6445)

Signed-off-by: Craig Perkins <cwperx@amazon.com>

Author: cwperks

.whitesource

@@ -26,6 +26,7 @@
     "issueType": "DEPENDENCY"
   },
   "remediateSettings": {
+    "enableRenovate": true,
     "workflowRules": {
       "enabled": true
     }