[docker] Remove trailing whitespace at the XTM One insertion boundary

Strip the trailing whitespace on the connector-mitre depends_on line that
precedes the new XTM ONE section in both docker-compose.yml and
docker-compose.opensearch.yml.

Author: SamuelHassine

docker-compose.opensearch.yml

@@ -330,7 +330,7 @@ services:
     restart: always
     depends_on:
       opencti:
-        condition: service_healthy 
+        condition: service_healthy
 
   ###########################
   # XTM ONE                 #

docker-compose.yml

@@ -329,7 +329,7 @@ services:
     restart: always
     depends_on:
       opencti:
-        condition: service_healthy      
+        condition: service_healthy
 
   ###########################
   # XTM ONE                 #