add cache dir before switching user

Dockerfile

@@ -30,6 +30,8 @@ RUN ln -s -f /usr/bin/python${PYTHON_VERSION} /usr/bin/python3 && \
 RUN groupadd -g $SERVICE_GID $SERVICE_USER && \
     useradd -u $SERVICE_UID -g $SERVICE_GID -d /app -s /usr/sbin/nologin $SERVICE_USER
 
+RUN mkdir -p /app/.cache && chown -R $SERVICE_UID:$SERVICE_GID /app
+
 USER $SERVICE_USER
 WORKDIR /app
 
@@ -41,8 +43,6 @@ COPY --chown=$SERVICE_UID:$SERVICE_GID . /app
 COPY --chown=$SERVICE_UID:$SERVICE_GID --from=swagger-ui /usr/share/nginx/html/swagger-ui.css /app/swagger-ui-assets/swagger-ui.css
 COPY --chown=$SERVICE_UID:$SERVICE_GID --from=swagger-ui /usr/share/nginx/html/swagger-ui-bundle.js /app/swagger-ui-assets/swagger-ui-bundle.js
 
-RUN mkdir -p /app/.cache && chown -R $SERVICE_UID:$SERVICE_GID /app/.cache
-
 RUN python3 -m venv $POETRY_VENV && $POETRY_VENV/bin/pip install -U pip setuptools && \
     $POETRY_VENV/bin/pip install poetry==1.6.1