Provide ROPC warning on connections strings per SFI learn.microsoft.com mandate

[Rick-Anderson]

Issue or suggestion

This issue is a copy of https://github.com/dotnet/AspNetCore.Docs/issues/33226

See the warning just above SQL Server Express LocalDB and follow see Secure authentication flows.

That's how we're handing potential ROPC risks. Ultimately customers will deploy apps to production. Most of the work is done in a few include files to choose from

dotnet_EntityFramework_Docs

• [ ] Connection Strings
• [ ] Connection strings and models
• [ ] Scaffolding (Reverse Engineering)
• [ ] Configuration File Settings
• [ ] EF Core tools reference (Package Manager Console) - EF Core
• [ ] EF Core tools reference (.NET CLI) - EF Core
• [ ] Multi-tenancy - EF Core
• [ ] Azure Cosmos DB Provider - EF Core
• [ ] What's New in EF Core 5.0
• [ ] Entity Framework 6 SQL Server provider based on Microsoft.Data.SqlClient
• [ ] Visual Studio Releases - EF6
• [ ] Applying Migrations - EF Core
• [ ] Port from EF6 to EF Core - Detailed Cases
• [ ] Using migrate.exe - EF6
• [ ] Database Providers - EF Core
• [ ] Porting from EF6 to EF Core - Porting a Code-Based Model - EF
• [ ] Tools & Extensions - EF Core
• [ ] DbContext Lifetime, Configuration, and Initialization - EF Core
• [ ] Enum Support - EF Designer - EF6
• [ ] Code First Conventions - EF6
• [ ] Interceptors - EF Core
• [ ] Database First - EF6
• [ ] What's New in EF Core 6.0
• [ ] Code First to an Existing Database - EF6
• [ ] Advanced Performance Topics
• [ ] Entity Framework Designer Keyboard Shortcuts - EF6
• [ ] Breaking changes in EF Core 7.0 (EF7) - EF Core
• [ ] Databinding with WinForms - EF6
• [ ] Databinding with WPF - EF6
• [ ] The Entity Framework 6 provider model - EF6
• [ ] Overview of Entity Framework Core - EF Core
• [ ] Upgrading from previous versions to EF Core 2 - EF Core
• [ ] Get Started with Windows Forms - EF Core
• [ ] Dependency resolution - EF6
• [ ] Porting from EF6 to EF Core - Behavior changes
• [ ] Porting from EF6 to EF Core - Porting an EDMX-Based Model - EF

CS effort for repos: dotnet_EntityFramework_Docs

For details see: SFI info in Teams