You can try this (from MS) registry change. It worked on our standard Windows 11 Pro workstation template to update it from 22H2 to 24H2.
Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Windowsupdate]
"TargetReleaseVersion"=dword:00000001
"ProductVersion"="Windows 11"
"TargetReleaseVersionInfo"="24H2"
Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Windowsupdate]
"TargetReleaseVersion"=dword:00000001
"ProductVersion"="Windows 11"
"TargetReleaseVersionInfo"="24H2"