fix: permission error when read/writing to .cache

Dockerfile

@@ -15,6 +15,10 @@ COPY redis.conf .
 ENV REDIS_HOST=localhost
 ENV REDIS_PORT=6379
 
+ENV TRANSFORMERS_CACHE=/tmp/.cache/huggingface/transformers
+ENV HF_HOME=/tmp/.cache/huggingface
+ENV SENTENCE_TRANSFORMERS_HOME=/tmp/.cache/sentence_transformers
+
 COPY ./src ./src
 
 CMD ["sh", "-c", "redis-server redis.conf & python3 src/app.py"]