test: migrate Debian fixture to Trixie

[PabloZaiden]

Summary

• Migrate the Debian-based TypeScript devcontainer fixture from Bookworm to Trixie.
• Keep all Ubuntu-based images and configuration unchanged.

Validation

• bun run typecheck
• bun test tests/core.test.ts

[Copilot]

🟢 Approval recommended

The change is small, localized to a unit-test fixture string, and does not alter production logic.

Pull request overview

This PR updates the Debian-based TypeScript devcontainer image tag used in the discoverDevcontainerConfig unit test fixture from Debian Bookworm to Debian Trixie, keeping Ubuntu-based fixtures unchanged.

Changes:

• Update the nested devcontainer fixture image reference from ...:1-22-bookworm to ...:1-22-trixie in tests/core.test.ts.
• Update the corresponding assertion to match the new fixture value.

File summaries

File	Description
tests/core.test.ts	Updates the devcontainer image tag string used as a test fixture to reflect Debian Trixie.

Review details

Suppressed comments (1)

tests/core.test.ts:484

• Same as above: update the expected fixture image string to a published tag so the test stays representative of real devcontainer images.

    expect(discovered.config.image).toBe("mcr.microsoft.com/devcontainers/typescript-node:1-22-trixie");

• Files reviewed: 1/1 changed files
• Comments generated: 1
• Review effort level: Lite

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