In order to determine whether a Storj bucket was associated with iX
Systems, the text contents of the bucket's `Attribution` tag in Storj's
S3 XML response was checked to see whether it contained the iX-Storj
user agent. However, a `TypeError` exception was raised if the bucket
was unattributed because the content of the empty `Attribution` element
was `None`. This issue has been fixed by gracefully handling the empty
element.

/boot/grub was not mounted at the time this script was started which prevented
the GRUB config from being updated and resulted in booting back to CORE not
possible.

Additionally, let's stop running update script when we just need to boot back
to FreeBSD as this consumes too much time.

This commit increases 2fa window for API tests as we see some random 2fa
failures which are likely related to window specified expiring and 2fa
auth failing.

* Replace ntp package with chrony

* Generate chrony.conf instead of ntp.conf

* Eliminate ntp-systemd-wrapper

* Rename ntpd service systemd unit from ntp to chronyd

* Update ntp tests to chrony

* Update ntp APIs to use chrony

Utilize a NTPPeer class to define an interface that clients of the
system.ntpservers.peers API can use.

* Extend NTP tests and restore afterwards

* add hardware.memory.error_info endpoint

* add memory error alerts

* fix returns decorator

* simplify to a singular alert class

This reverts commit 5857a0da.

* Start service if it stopped for lockable fs attachment delegates

* integration test added for service restart

We need to generate the smb.conf during ctdb startup, but setting
up PAM at this point creates potential for CTDB_START cluster
event to hang for an unreasonable time. There's not really a
downside to configuring pam_winbind settings with other pam settings.

DeprecatedService -> DeprecatedServiceConfiguration

Enhance IPAddr.validate and IPAddr testing

Updating to bookworm caused library version bump to a version where
API had been changed.

* add DeprecatedServiceConfigurationAlert

(cherry picked from commit 7bc2f15c016a0f91465c1559b3bae82c105ccc30)

* update ldap schema deprecation alert

---------
Co-authored-by: Caleb <yocalebo@gmail.com>