Update opencti/connector-opencti Docker tag to v6.9.3

Author: renovate[bot]

docker-compose.opensearch.yml

@@ -302,7 +302,7 @@ services:
   ###########################
 
   connector-opencti:
-    image: opencti/connector-opencti:6.9.0
+    image: opencti/connector-opencti:6.9.3
     environment:
       - OPENCTI_URL=http://opencti:8080
       - OPENCTI_TOKEN=${OPENCTI_ADMIN_TOKEN}