fix: upgrade Wyoming TTS server for HA 1.7.2 compatibility

Wyoming library upgraded from 1.4.1 to 1.8.0. The new API requires
`version` param on TtsVoice and TtsProgram constructors — without it,
the info handshake fails on every HA connection and TTS synthesis never
reaches the server, causing silent playback failure on satellites.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

homeai-voice/tts/wyoming_kokoro_server.py

@@ -119,6 +119,7 @@ class KokoroEventHandler(AsyncEventHandler):
                 TtsProgram(
                     name="kokoro",
                     description="Kokoro ONNX TTS",
+                    version="1.0",
                     attribution=Attribution(
                         name="thewh1teagle/kokoro-onnx",
                         url="https://github.com/thewh1teagle/kokoro-onnx",
@@ -128,6 +129,7 @@ class KokoroEventHandler(AsyncEventHandler):
                         TtsVoice(
                             name=self._default_voice,
                             description="Kokoro voice",
+                            version="1.0",
                             attribution=Attribution(name="kokoro", url=""),
                             installed=True,
                             languages=["en-us"],