fix: upgrade alpine

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.20 AS builder
+FROM alpine:3.21 AS builder
 RUN apk update &&\
     apk upgrade &&\ 
     apk add --no-cache linux-headers alpine-sdk cmake tcl openssl-dev zlib-dev spdlog spdlog-dev cmake
@@ -47,7 +47,7 @@ RUN set -xe; \
 
 # runtime container with server
 #
-FROM node:alpine3.20
+FROM node:alpine3.21
 ENV LD_LIBRARY_PATH=/lib:/usr/lib:/usr/local/lib64
 RUN apk add --update --no-cache openssl libstdc++ supervisor perl coreutils spdlog spdlog-dev