[DataFactory] Fix Expression mode for SqlServerStoredProcedureActivity (#18419)

* update

* update

* fix

Co-authored-by: xiaojwan <xiaojwan@microsoft.com>

Author: seanwang051

specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Pipeline.json

@@ -6022,10 +6022,7 @@
         },
         "storedProcedureParameters": {
           "description": "Value and type setting for stored procedure parameters. Example: \"{Parameter1: {value: \"1\", type: \"int\"}}\".",
-          "type": "object",
-          "additionalProperties": {
-            "$ref": "#/definitions/StoredProcedureParameter"
-          }
+          "type": "object"
         }
       },
       "required": [

specification/synapse/data-plane/Microsoft.Synapse/preview/2021-06-01-preview/entityTypes/Pipeline.json

@@ -5719,10 +5719,7 @@
         },
         "storedProcedureParameters": {
           "description": "Value and type setting for stored procedure parameters. Example: \"{Parameter1: {value: \"1\", type: \"int\"}}\".",
-          "type": "object",
-          "additionalProperties": {
-            "$ref": "#/definitions/StoredProcedureParameter"
-          }
+          "type": "object"
         }
       },
       "required": [

specification/synapse/data-plane/Microsoft.Synapse/stable/2020-12-01/entityTypes/Pipeline.json

@@ -5749,10 +5749,7 @@
         },
         "storedProcedureParameters": {
           "description": "Value and type setting for stored procedure parameters. Example: \"{Parameter1: {value: \"1\", type: \"int\"}}\".",
-          "type": "object",
-          "additionalProperties": {
-            "$ref": "#/definitions/StoredProcedureParameter"
-          }
+          "type": "object"
         }
       },
       "required": [