Added to ignored list

Author: nikita-malininn

.ci/ignore_treon_docker.txt

@@ -83,4 +83,5 @@ notebooks/multilora-image-generation/multilora-image-generation.ipynb
 notebooks/llm-agent-react/llm-agent-react-langchain.ipynb
 notebooks/multimodal-rag/multimodal-rag-llamaindex.ipynb
 notebooks/llm-rag-langchain/llm-rag-langchain-genai.ipynb
-notebooks/ltx-video/ltx-video.ipynb
+notebooks/ltx-video/ltx-video.ipynb
+notebooks/outetts-text-to-speech/outetts-text-to-speech.ipynb