upgrade openssh-server package v1:9.2p1-2+deb12u{2->3}

https://web.archive.org/web/20240707180920/https://tracker.debian.org/news/1541136/accepted-openssh-192p1-2deb12u3-source-into-stable-security/

Dockerfile

@@ -10,7 +10,7 @@ ARG GIT_ANNEX_PACKAGE_VERSION=10.20230126-3
 ARG GIT_PACKAGE_VERSION=1:2.39.2-1.1
 # https://www.openssh.com/releasenotes.html
 # https://salsa.debian.org/ssh-team/openssh/-/blob/master/debian/changelog
-ARG OPENSSH_SERVER_PACKAGE_VERSION=1:9.2p1-2+deb12u2
+ARG OPENSSH_SERVER_PACKAGE_VERSION=1:9.2p1-2+deb12u3
 ARG TINI_PACKAGE_VERSION=0.19.0-1
 ARG USER=git
 ARG GITOLITE_HOME_PATH=/var/lib/gitolite