Set uv cache dir permissions

Dockerfile

@@ -8,7 +8,8 @@ RUN npm run build
 
 FROM --platform=linux/amd64 ghcr.io/astral-sh/uv:python3.12-bookworm
 WORKDIR /app
-ENV UV_CACHE_DIR=/app/.cache/uv
+ENV UV_CACHE_DIR=/tmp/uvcache
+RUN mkdir -p ${UV_CACHE_DIR} && chmod -R 777 ${UV_CACHE_DIR}
 COPY pyproject.toml uv.lock ./
 RUN uv sync --frozen --no-dev
 COPY evals/ evals/