i would expect you to need to install them together so:
sudo dpkg -i initramfs-tools_0.103ubuntu4.1_all.deb initramfs-tools-bin_0.103ubuntu4.1_amd64.deb
Then rerun update-initramfs -u again.
i would expect you to need to install them together so:
sudo dpkg -i initramfs- tools_0. 103ubuntu4. 1_all.deb initramfs- tools-bin_ 0.103ubuntu4. 1_amd64. deb
Then rerun update-initramfs -u again.