Update OAS up to 2025-04

Author: update-oas-bot

api-specifications/marketingsolutions_2024-04.json

@@ -7773,6 +7773,7 @@
           }
         },
         "description": "The budget automation configuration model",
+        "nullable": true,
         "x-used-in-request": true
       },
       "CampaignBudgetAutomationV23Q1": {

api-specifications/marketingsolutions_2024-07.json

@@ -7773,6 +7773,7 @@
           }
         },
         "description": "The budget automation configuration model",
+        "nullable": true,
         "x-used-in-request": true
       },
       "CampaignBudgetAutomationV23Q1": {

api-specifications/marketingsolutions_2024-10.json

@@ -7773,6 +7773,7 @@
           }
         },
         "description": "The budget automation configuration model",
+        "nullable": true,
         "x-used-in-request": true
       },
       "CampaignBudgetAutomationV23Q1": {

api-specifications/marketingsolutions_2025-01.json

@@ -7780,6 +7780,7 @@
           }
         },
         "description": "The budget automation configuration model",
+        "nullable": true,
         "x-used-in-request": true
       },
       "CampaignBudgetAutomationV23Q1": {