Update @github/copilot to 1.0.29 (#1092)

* Update @github/copilot to 1.0.29

- Updated nodejs and test harness dependencies
- Re-ran code generators
- Formatted generated code

* Fix C#/Go/Python codegen to recurse into nested API sub-groups

The code generators for C#, Go, and Python only processed one level of
API groups, silently dropping nested sub-groups like
skills.config.setDisabledSkills and mcp.config.*. TypeScript already
handled these correctly via recursive emitGroup.

- C#: emitServerApiClass/emitSessionApiClass now return string[] and
  recurse, creating sub-API classes (e.g. ServerSkillsConfigApi)
- Go: new emitApiGroup helper recurses and emits zero-cost accessor
  methods on parent type aliases (e.g. rpc.Skills.Config())
- Python: new emitPyApiGroup helper emits sub-groups depth-first and
  adds sub-group instances as attributes on parent classes

Regenerated all three outputs to pick up both mcp.config.* (pre-existing
gap) and skills.config.setDisabledSkills (new in 1.0.29).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Stephen Toub <stoub@microsoft.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: 3 people