Redshift: Secrets Manager secret selection does not show all secrets

## Problem
When creating a connection to a redshift database, and selecting the connection option "secretsmanager", only 10 secrets are shown to be searchable in the dialog box.

## Steps to reproduce the issue

1. Configure with profile
2. Browse to Region > Redshift > Find Redshift Database
3. Click "click to connect"
4. Select "AWS Secrets Manager"
5. Enter database name

On the secret selection window, only 10 secrets are listed; searching for an unlisted secret is not possible even if it is typed manually.

## Expected behavior

All secrets which are available via the regular CLI should be usable within the extension.

## System details (run `AWS: About` and/or `Amazon Q: About`)

- OS: Windows_NT x64 10.0.22631
- Visual Studio Code version: 12.4.254.20-electron.0
- AWS Toolkit version: 3.29.0
- Amazon Q version: 1.30.0

Start by tracing the Redshift connection flow after selecting "AWS Secrets Manager," then inspect how the secret-selection dialog retrieves and searches secrets. Compare the dialog's results with the secrets available through the regular CLI. Done means every available secret can be found and selected in the extension.

Written by the indexing model from the issue text.