Update scripting tutorial section

[scheibelp]

(note this isn't presented until Wednesday, so is not urgent until evening of August 5th)

This pretty-much works out of the box. I changed a couple example outputs

• most references to Spec.concretize were already replaced with concretize.concretize_one, but one of the output files did not
• The docstring to spack.store.STORE.db.query changed

[alecbcs]

To test this out we should rebase on main and also add scripting.sh back into outputs/Makefile.

[scheibelp]

@alecbcs it's now updated

I see scripting.sh in outputs/Makefile currently: the two files I modified are not generated by it (though they live in outputs/scripting/)

[alecbcs]

Ahh gotcha. So I think we're good then. We'd only need to test scripting if you modified the scripting.sh file.

[alecbcs]

Looks good to me. Thanks @scheibelp!