upgrade borgbackup package from v1.2.2-r1 to v1.2.4-r0 (see below)

https://web.archive.org/web/20230415081212/https://github.com/borgbackup/borg/blob/1.2.4/docs/changes.rst#version-124-2023-03-24

https://web.archive.org/web/20230415081318/https://git.alpinelinux.org/aports/commit/community/borgbackup?h=3.17-stable&id=de98060292e8874a215f202eb37f78c68983fab2

https://github.com/fphammerle/docker-borgbackup-client/commit/f8a3986fd0418dfe3b662679877d995e35de4f80

Dockerfile

@@ -1,6 +1,6 @@
 FROM docker.io/alpine:3.17.3
 
-ARG BORGBACKUP_PACKAGE_VERSION=1.2.2-r1
+ARG BORGBACKUP_PACKAGE_VERSION=1.2.4-r0
 ARG OPENSSH_SERVER_PACKAGE_VERSION=9.1_p1-r2
 ARG TINI_PACKAGE_VERSION=0.19.0-r1
 ARG USER=borg