Fix spack build action

[uturuncoglu]

This PR aims to fix spack build action and includes following changes.

• The new repo for apt get is added to allow Ubuntu to find gfortran-13 package correctly.
• The g++-13 package is also added to the list of required packages explicitly since Ubuntu was not installing it by default and spack package manager had issue to find the g++13 compiler.

The chnages in action is tested under my own personal fork. The successful run can be seen in https://github.com/uturuncoglu/esmf/actions/runs/9123456143/job/25085911284.

[uturuncoglu]

@uturuncoglu Try using the ubuntu-24.04 runner instead of ubuntu-latest (22.04) because the gfortran packages are different.

• Ubuntu 24.04
• Ubuntu 22.04

[uturuncoglu]

@danrosen25 Thanks for your suggestion. I changed the runner to Ubuntu 24.04. It has

gcc@=12.3.0 gcc@=13.2.0 gcc@=14.0.1

So, I think we could go with it. The action uses most recent one by default. I am testing now and if it works I'll change it in the PR.