Changes to GET /orgs/:org_id/billing/budgets

the budgets/items/id response's property type changed from integer null to string null, and format from int64 to no format for status 200

the budgets/items/limit_credits response's property type changed from integer to string, and format from int64 to no format for status 200

the budgets/items/project_id response's property type changed from integer null to string null, and format from int64 to no format for status 200

the budgets/items/role_id response's property type changed from integer null to string null, and format from int64 to no format for status 200

endpoint added

api path removed without deprecation