Description of problem:

Deprecated MemoryLimit is used in insights-register unit file.

[root@ip-10-116-1-241 ec2-user]# systemd-analyze verify insights-register.service
/usr/lib/systemd/system/insights-register.service:23: Unit uses MemoryLimit=; please use MemoryMax= instead. Support for MemoryLimit= will be removed soon.
[root@ip-10-116-1-241 ec2-user]# rpm -qf /usr/lib/systemd/system/insights-register.service
redhat-cloud-client-configuration-1-11.el9.noarch
[root@ip-10-116-1-241 ec2-user]# systemctl cat insights-register

1. /usr/lib/systemd/system/insights-register.service
2. This file is part of insights-client.
   #
3. Any changes made to this file will be overwritten during a software update. To
4. override a parameter in this file, create a drop-in file, typically located at
5. /etc/systemd/system/insights-register.service.d/override.conf. Put the desired
6. overrides in that file and reload systemd. The next time this service is run
7. (either manually or via a systemd timer), the overridden values will be in
8. effect.
   #
9. For more information about systemd drop-in files, see systemd.unit(5).

[Unit]
Description=Automatically Register with Red Hat Insights
Documentation=man:insights-client(8)
After=network-online.target

[Service]
Type=simple
ExecStart=/usr/bin/insights-client --register
Restart=no
WatchdogSec=900
CPUQuota=30%
MemoryLimit=2G
TasksMax=300
BlockIOWeight=100
ExecStartPost=-/bin/bash -c "echo 2G >/dev/null 2>&1 > /sys/fs/cgroup/memory/system.slice/insights-register.service/memory.memsw.limit_in_bytes"
ExecStartPost=-/bin/bash -c "echo 1G >/dev/null 2>&1 > /sys/fs/cgroup/memory/system.slice/insights-register.service/memory.soft_limit_in_bytes"
ExecStopPost=/bin/systemctl mask --now insights-register.path

Below is the console output:
[ 24.786463] XFS (nvme0n1p3): Ending recovery (logdev: internal)
[ 24.824649] ppdev: user-space parallel port driver
[ 28.117088] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 30.912641] block nvme0n1: the capability attribute has been deprecated.

RHEL Version:
RHEL-9.3( 5.14.0-362.8.1.el9_3.x86_64)

How reproducible:
100%

Steps to Reproduce:
1. Launch a RHEL-9.3 system with redhat-cloud-client-configuration installed.
2. Check journal log

Actual results:
See warning from journal log

Expected results:
No such warning in journal log

Additional info:

• Here is a reference bug that a similar issue got fixed in insights-client pkg 2155468.