chore: add missing featureType param to context query

Description

Adds a missing featureType: 'duo_chat' to the ai context query.

This was recently added in the language server but not updated in VSCode due to a problem with the types shipped by the language server (see gitlab-org/editor-extensions/gitlab-lsp#923 (closed))

This MR adds the missing param in anticipation of the stricter types soon being shipped.

How has this been tested?

No functional change

  • If src/browser or src/common has been modified, please consider interoperability with the Web IDE. See Running the Extension in WebIDE.
  • Consider an end-to-end test for significant new features that aren't covered by integration tests.

Screenshots (if appropriate)

What CHANGELOG entry will this MR create?

  • fix: Bug fix fixes - a user-facing issue in production - included in changelog
  • feature: New feature - a user-facing change which adds functionality - included in changelog
  • BREAKING CHANGE: (fix or feature that would cause existing functionality to change) - should bump major version, mentioned in the changelog
  • None - other non-user-facing changes

Merge request reports

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