Merge branch 'fix_migration_mongo' into 'master_1.10.x'

Fixed host on which upgrade_R7-R8_referentials role is played

See merge request vitam/vitam!5219

deployment/ansible-vitam-exploitation/migration_r7_r8.yml

@@ -1,9 +1,12 @@
 ---
 - import_playbook: stop_external.yml
 
-- hosts: hosts-functional-administration
+- hosts: hosts-mongos-data
   roles:
     - upgrade_R7-R8_referentials
+
+- hosts: hosts-functional-administration
+  roles:
     - upgrade_R7_functionaladministration
 
 - import_playbook: start_external.yml