fix(neutts): pin torchaudio to match torch (fixes undefined symbol) (#9798) (#10292)

fix(neutts): pin torchaudio to match torch to avoid ABI mismatch (#9798)

neucodec pulls torchaudio transitively but it was unpinned, so an
incompatible torchaudio could be resolved against the pinned torch==2.8.0,
producing the 'undefined symbol: torch_library_impl' load failure. Pin
torchaudio==2.8.0 alongside torch in the cpu and cublas12 requirements.

Assisted-by: claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>

Author: localai-bot

backend/python/neutts/requirements-cpu.txt

@@ -1,6 +1,7 @@
 --extra-index-url https://download.pytorch.org/whl/cpu
 accelerate
 torch==2.8.0
+torchaudio==2.8.0
 transformers==4.56.1
 librosa==0.11.0
 neucodec>=0.0.4

backend/python/neutts/requirements-cublas12.txt

@@ -3,6 +3,7 @@ neucodec>=0.0.4
 phonemizer==3.3.0
 soundfile==0.13.1
 torch==2.8.0
+torchaudio==2.8.0
 transformers==4.56.1
 resemble-perth==1.0.1
 accelerate