upgrade openssh-server package to v9.0_p1-r1

https://web.archive.org/web/20220527083640/https://www.openssh.com/releasenotes.html
https://git.alpinelinux.org/aports/commit/main/openssh?h=3.16-stable&id=04d4e07ad8bd54fe49fe32c117c47d91f31ae937
https://git.alpinelinux.org/aports/commit/main/openssh?h=3.16-stable&id=5447e74d96bb53004a5256a68935cb549d118724
https://git.alpinelinux.org/aports/commit/main/openssh?h=3.16-stable&id=a7509603971ce2f3282486a43bb773b1b522af83
https://git.alpinelinux.org/aports/commit/main/openssh?h=3.16-stable&id=065b08d9d643af30eced475ed985eb6150941d0f
https://git.alpinelinux.org/aports/commit/main/openssh?h=3.16-stable&id=9c0baee37c3433f5f86c3530806541f594e2d276
https://git.alpinelinux.org/aports/commit/main/openssh?h=3.16-stable&id=96fb6558ea6101255fb3e63a317e3db1789c4bbe
https://git.alpinelinux.org/aports/commit/main/openssh?h=3.16-stable&id=84ae0dc11b21c9978af032066fb93ba5c656fca9

https://github.com/fphammerle/docker-mysqldump-sshd/commit/fdcf437fb61178ec4caf9ec0f27f1939d979920a

Dockerfile

@@ -1,6 +1,6 @@
 FROM docker.io/alpine:3.16.0
 
-ARG OPENSSH_SERVER_PACKAGE_VERSION=8.8_p1-r1
+ARG OPENSSH_SERVER_PACKAGE_VERSION=9.0_p1-r1
 ENV SSHD_HOST_KEYS_DIR=/etc/ssh/host_keys
 ENV CLIENT_USER=nonroot
 ENV CLIENT_HOME=/home/$CLIENT_USER