System automatically rebooted after package update by dnf-automatic utility.

Issue

• Server automatically rebooted after an automatic package update by dnf-automatic utility.

Mar 11 22:59:26 xxx dnf-automatic[1466235]: Installed products updated.
Mar 11 22:59:27 xxx dnf-automatic[1466235]: The following updates have been applied on 'xxx':
Mar 11 22:59:27 xxx dnf-automatic[1466235]: ================================================================================
Mar 11 22:59:27 xxx dnf-automatic[1466235]: Package       Architecture Version                    Repository          Size
Mar 11 22:59:27 xxx dnf-automatic[1466235]: ================================================================================
Mar 11 22:59:27 xxx dnf-automatic[1466235]: Upgrading:
Mar 11 22:59:27 xxx dnf-automatic[1466235]: curl          x86_64       7.61.1-25.el8_7.3          rhel8_BaseOS       352 k
Mar 11 22:59:27 xxx dnf-automatic[1466235]: libcurl       x86_64       7.61.1-25.el8_7.3          rhel8_BaseOS       302 k
Mar 11 22:59:27 xxx dnf-automatic[1466235]: Transaction Summary
Mar 11 22:59:27 xxx dnf-automatic[1466235]: ================================================================================
Mar 11 22:59:27 xxx dnf-automatic[1466235]: Upgrade  2 Packages
Mar 11 22:59:27 xxx dnf-automatic[1466235]: Updates completed at Sat 11 Mar 2023 10:59:27 PM IST
./
Mar 11 22:59:28 xxx sh[146681]: Shutdown scheduled for Sat 2023-03-11 23:04:28 IST, use 'shutdown -c' to cancel.  <<====
Mar 11 22:59:28 xxx systemd[1]: dnf-automatic-install.service: Succeeded.
Mar 11 22:59:28 xxx systemd[1]: Started dnf automatic install updates.
Mar 11 22:59:28 xxx systemd[1]: man-db-cache-update.service: Succeeded.
Mar 11 22:59:28 xxx systemd[1]: Started man-db-cache-update.service.
./
Mar 11 23:04:28 xxx systemd-logind[1464]: System is rebooting (rebooting after applying package updates).

Note: This solution is about finding root cause of reboot and not about configuration of dnf-automatic.