tts-ggml: bump tts-cpp dependency to 2026-05-07#1

[GustavoA1604]

[0.1.1]

Fixed

• Fixed two issues when loading chatterbox on iOS:
  • gguf_init_from_file race: bake_voice_conditioning() now runs before s3gen_preload_thread is spawned, so the two gguf_init_from_file calls no longer race against ggml's process-global state (previously aborted in ggml_abort on iOS).
  • Metal shared-buffer-type init race when unload is called immediately after load

[github-actions]

Tier-based Approval Status

**PR Tier:** TIER1

**Current Status:** ✅ APPROVED

**Requirements:**
- 1 Team Member approval ✅ (1/1)
- 1 Team Lead OR Management approval ✅ (1/1)



---
*This comment is automatically updated when reviews change.*