add TZ for mc

mc/Dockerfile

@@ -1,6 +1,10 @@
 FROM alpine
 LABEL maintainer="Stille <stille@ioiox.com>"
 
+ENV TZ=Asia/Shanghai
+RUN apk add --no-cache tzdata \
+    && ln -snf /usr/share/zoneinfo/$TZ /etc/localtime \
+    && echo $TZ > /etc/timezone
 RUN if [ "$(uname -m)" = "x86_64" ]; then export PLATFORM=amd64 ; else if [ "$(uname -m)" = "aarch64" ]; then export PLATFORM=arm64 ; fi fi \
     && wget https://dl.minio.io/client/mc/release/linux-${PLATFORM}/mc -O /usr/local/bin/mc \
     && chmod +x /usr/local/bin/mc