This update for shim fixes the following issues:
CVE-2022-28737 was missing as reference previously.
Upgrade shim-install for bsc#1210382
After closing Leap-gap project since Leap 15.3, openSUSE Leap direct uses shim from SLE. So the castring is 'SUSE Linux Enterprise Secure Boot CA1', not 'openSUSE Secure Boot CA1'. It causes that the updateboot=no, so all files in /boot/efi/EFI/boot are not updated.
Logic was added that is using ID field in os-release for checking Leap distro and set ca_string to 'SUSE Linux Enterprise Secure Boot CA1'. Then /boot/efi/EFI/boot/* can also be updated.