Fix path for modifying ownership in Dockerfile

Dockerfile

@@ -85,7 +85,7 @@ COPY --from=builder /app/logs ./logs
 # copy .env.production to runner so that runtime can have new env vars from repo if needed
 #COPY --from=builder /app/.env.production .env.production
 USER root
-RUN chgrp -R 0 ./next/ && chmod g+w -R ./next/
+RUN chgrp -R 0 ./next/ && chmod g+w -R ./.next/
 RUN chgrp -R 0 ./logs/ && chmod g+w -R ./logs/
 USER default