[tools/shoestring] fix: upgrade Symbol node's to MongoDB 7

Author: Wayonb

tools/shoestring/shoestring/templates/docker-compose-dual.yaml

@@ -2,7 +2,7 @@
 version: '2'
 services:
   db:
-    image: mongo:6.0.14
+    image: mongo:7.0.16
     user: '{{ user }}'
     command: mongod --dbpath=/dbdata
     stop_signal: SIGINT
@@ -13,7 +13,7 @@ services:
       - ./dbdata:/data:rw
 
   initiate:
-    image: mongo:6.0.14
+    image: mongo:7.0.16
     user: '{{ user }}'
     command: /bin/bash /startup/mongors.sh /real_data/startup/mongo-initialized
     volumes:

tools/shoestring/tests/internal/test_Preparer.py

@@ -749,8 +749,8 @@ def _assert_can_configure_docker(self, config, expected_startup_files, expected_
 
 				# - check compose file
 				expected_image_map = {
-					'db': 'mongo:6.0.14',
-					'initiate': 'mongo:6.0.14',
+					'db': 'mongo:7.0.16',
+					'initiate': 'mongo:7.0.16',
 					'client': 'symbolplatform/symbol-server:gcc-a.b.c.d',
 					'broker': 'symbolplatform/symbol-server:gcc-a.b.c.d',
 					'rest-api': 'symbolplatform/symbol-rest:a.b.c',