Use Alpine 3.24 stable base image

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:latest
+FROM alpine:3.24
 
 RUN mkdir /myconfig
 RUN mkdir /home/nfs_download

README.md

@@ -1,6 +1,8 @@
 # docker-rtorrent
 This is plain simple rtorrent with proxy and custom rtorrent.rc
 
+Base image: Alpine Linux 3.24 stable (`alpine:3.24`), including its latest patch updates.
+
 Source: https://git.k2patel.in/k2patel/docker-rtorrent
 
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