chore(deps): update alpine:latest docker digest to 4b7ce07 (#2473)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: bitcoin-tools

docker/Dockerfile_alpine

@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1
 # Alpine is a lean, efficiency-focused Linux distribution.
 # This Dockerfile is ideal for creating lightweight, resource-efficient containers.
-FROM alpine:latest@sha256:4bcff63911fcb4448bd4fdacec207030997caf25e9bea4045fa6c8c44de311d1
+FROM alpine:latest@sha256:4b7ce07002c69e8f3d704a9c5d6fd3053be500b7f1c69fc0d80990c2ad8dd412
 
 # Set the terminal type to Xterm.
 ENV TERM=xterm