Update Dockerfile (#11848)

Dockerfile

@@ -63,6 +63,7 @@ ARG GID="991"
 RUN apt-get update \
 	&& apt-get install -y --no-install-recommends \
 	ffmpeg tini curl libjemalloc-dev libjemalloc2 \
+	&& ln -s /usr/lib/$(uname -m)-linux-gnu/libjemalloc.so.2 /usr/local/lib/libjemalloc.so \
 	&& corepack enable \
 	&& groupadd -g "${GID}" misskey \
 	&& useradd -l -u "${UID}" -g "${GID}" -m -d /misskey misskey \
@@ -81,7 +82,7 @@ COPY --chown=misskey:misskey --from=native-builder /misskey/packages/backend/bui
 COPY --chown=misskey:misskey --from=native-builder /misskey/fluent-emojis /misskey/fluent-emojis
 COPY --chown=misskey:misskey . ./
 
-ENV LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.2
+ENV LD_PRELOAD=/usr/local/lib/libjemalloc.so
 ENV NODE_ENV=production
 HEALTHCHECK --interval=5s --retries=20 CMD ["/bin/bash", "/misskey/healthcheck.sh"]
 ENTRYPOINT ["/usr/bin/tini", "--"]