[Bug]: Connections don't show up even though they are specified in devcontainer.json

### Description

A connection [specified](https://github.com/microsoft/vscode-remote-try-sqlserver/blob/4eeef3a8479dc84167aed20fe75a3012f3139d23/.devcontainer/devcontainer.json#L15-L26) in devcontainer.json are not reflected when codespaces or container is started.

### Steps to Reproduce

Open https://github.com/microsoft/vscode-remote-try-sqlserver in codespace and see the the specified connection is nowhere to be found. This used to work before.

### Affected Area

- [x] Connection dialog (SQL Server | Azure browse/Fabric browse)
- [ ] Query editor
- [ ] Query results panel
- [ ] Object Explorer
- [ ] GitHub Copilot integration
- [ ] Preview/Edit data
- [ ] Table Designer
- [ ] Schema Designer
- [ ] Schema Compare
- [ ] Local SQL Server Container provisioning
- [ ] SQL database in Fabric provisioning
- [ ] DACPAC/BACPAC export/import
- [ ] SQL Database projects
- [ ] Query Plan Visualizer
- [ ] Other (please describe below)

### If you selected "Other", please describe the affected area

_No response_

### Environment Information

• VS Code Version: latest available in Codespaces
• MSSQL Extension Version: latest available in Codespaces
• Operating System: Some flavour of Linux in Codespaces
• Connection Type (SQL database in Fabric, Azure SQL, SQL Server, etc.): SQL Server

### Confirmation

- [x] I have searched existing issues and couldn't find a match
- [ ] I want to work on this issue