Fix flaky tests due to change in feature configuration.

[Kaniska (Kaniska244)]

Summary

Fixes two flaky/failing tests caused by a change in feature configuration. The deprecated terraform shorthand now resolves to terraform:1, which declares github-cli as a hard dependency. As a result, the resolved feature set includes an additional feature, so the expected counts in the affected tests needed to be updated.

Changes

• src/test/container-features/containerFeaturesOrder.test.ts

  • Updated expected resolved feature count from 3 to 4.
  • Added the expected ghcr.io/devcontainers/features/github-cli entry (pulled in transitively via terraform:1).
  • Added an inline comment explaining why the extra dependency is present.

• src/test/container-features/e2e.test.ts

  • Updated the expected featureSets.length assertion from 3 to 4 to account for the github-cli hard dependency.
  • Added an inline comment for clarity.

Why

The terraform shorthand resolving to terraform:1 introduces github-cli as a hard dependency during feature resolution. The tests were asserting the pre-change counts, causing them to fail intermittently/consistently. This PR realigns the assertions with the current, correct feature resolution behavior.

Testing

• Verified the affected Feature Dependencies and Dev Container Features E2E (remote) tests pass with the updated expectations.

Notes

• Test-only change; no production/runtime code is modified.
• Net diff: 2 files changed, +10 / -2.