Well basically what the title says. I'm struggling with the installation of this lovely appliance at the moment of installing packages:

Let me show you the full message:
Failed to add backup appliance: Failed to execute ssh command "sudo apt-get -q -y install veeamgcpbackup". Error: E: Unable to correct problems, you have held broken packages.
. Output: Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libpam0g-dev : Depends: libpam0g (= 1.4.0-11ubuntu2.4) but 1.4.0-11ubuntu2.5 is to be installed
Depends: libc6-dev but it is not going to be installed or
libc-dev
I'm not seeing much on deployment logs, but this log message is pretty straightforward. Also this is completely managed by Veeam B&R, I mean, it's that server the one who deploys the appliance so basically I can't do much inside the appliance to manually install these packages (apart from the fact that the appliance gets deleted after the failed installation).
I tried other ways, like installing it from zero from the marketplace, but hey, guess what, at the moment only version 5 is allowed to be installed, so basically no version 6 available.
Well I also tried to install version 5 and upgrade it, but I'm getting same issue.
Obviously I'm in need to go with version 6 as my Veeam B&R is version 12.3 (version compatibility) and it must be connected to this appliance in orden to restore backups from my GCP environment to on-premises.
Hope somebody can help me on this one...
Cheers!