[Update OpenAPI] Merge openapi dev using openapi-merge-cli

Co-authored-by: gianmarcoplutino <119858159+gianmarcoplutino@users.noreply.github.com>

Author: selfcare-github-bot

infra/apim_v2/api/ms_internal_api/v1/openapi.dev.json

@@ -3080,6 +3080,10 @@
             "description": "True if institution is an aggregator",
             "example": false
           },
+          "istatCode": {
+            "type": "string",
+            "description": "Location code of institution"
+          },
           "origin": {
             "type": "string",
             "description": "Institution data origin"