Update Dockerfile

Author: stuartmaxwell

Dockerfile

@@ -41,6 +41,8 @@ RUN uv sync --locked --no-dev
 COPY . /app
 RUN mkdir /app/staticfiles
 
+# Fix permissions
+RUN chmod 1777 /tmp
 RUN chmod +x /app/backup.sh
 RUN chmod +x /app/entrypoint.sh