In .NET Aspire, how can I model/configure multiple connection strings to the same database? In the example below, I want MigrationService to connect to the same db database but using a different connection string than ApiService in order to implement principal of least privilege (only use db_ddladmin for applying EF Core migrations).

var builder = DistributedApplication.CreateBuilder(args);

var db = builder.AddSqlServer("sql")
                .PublishAsConnectionString()
                .AddDatabase("db");

builder.AddProject<Projects.Parameters__MigrationService>("migrationservice")
       .WithReference(db);

builder.AddProject<Projects.Parameters_ApiService>("api")
       .WithReference(db);

builder.Build().Run();