Package versions do not match across tutorials

The guidance says that users should

Check that the desired packages are indeed available in the expected version as we did in the [previous tutorial](https://nix.dev/tutorials/first-steps/ad-hoc-shell-environments#check-package-version).

But the expected versions in the previous tutorial are different from the versions provided in this tutorial.

Previous tutorial:

[nix-shell:~/environment/nix] git --version
git version 2.38.3
[nix-shell:~/environment/nix] nvim --version | head -1
NVIM v0.8.1
[nix-shell:~/environment/nix] npm --version
8.19.2

This tutorial:

[nix-shell:~/environment/nix]$ git --version
git version 2.42.0
[nix-shell:~/environment/nix]$ nvim --version | head -1
NVIM v0.9.4
[nix-shell:~/environment/nix]$ npm --version
9.8.1

Either the versions should match, or this tutorial should specify the expected versions from the given branch.

Open the previous tutorial linked in the issue and the tutorial containing the quoted text, then compare their package-version examples. Update the examples or the guidance so the versions match, or clearly specify the expected versions for the relevant branch; done means the two tutorials no longer present conflicting expectations.