Provisioning scripts: installing packages is unnecessarily cumbersome

I want to install the "gdb" package on all linux images provisioned.

Current state

Now I have to edit a bunch of files and/or deal with apt/yum/dnf/zypper commands.
And for every new platform added later the command has to be copied manually.
Cherry-picking to branches is not automatic because platform names differ slightly (e.g. RHEL9.2 vs RHEL9.0) so the same files are in different directories.

Ideal solution

Ideally I would just add a line in a file under common/linux/auto/ with the content:

installPackages+=(gdb)

And all platforms would pick it up automatically, just because it's in the directory.