fix(connector): [Braintree] Consume merchant_account_id and merchant_config_currency in payment requests (#7408)

Co-authored-by: Debarshi Gupta <debarshi.gupta@Debarshi-Gupta-CM92YWDXFD.local>

api-reference-v2/openapi_spec.json

@@ -6372,6 +6372,23 @@
           }
         }
       },
+      "BraintreeData": {
+        "type": "object",
+        "required": [
+          "merchant_account_id",
+          "merchant_config_currency"
+        ],
+        "properties": {
+          "merchant_account_id": {
+            "type": "string",
+            "description": "Information about the merchant_account_id that merchant wants to specify at connector level."
+          },
+          "merchant_config_currency": {
+            "type": "string",
+            "description": "Information about the merchant_config_currency that merchant wants to specify at connector level."
+          }
+        }
+      },
       "BrowserInformation": {
         "type": "object",
         "description": "Browser information to be used for 3DS 2.0",
@@ -7652,6 +7669,14 @@
               }
             ],
             "nullable": true
+          },
+          "braintree": {
+            "allOf": [
+              {
+                "$ref": "#/components/schemas/BraintreeData"
+              }
+            ],
+            "nullable": true
           }
         }
       },