test: remove comment about rebuilding dist in node test

[MikeMcC399]

This PR removes the following comment from .github/workflows/example-node-versions.yml:

"# Hmm, should we rebuild the "dist" before using the action?"

It's unclear whether this was supposed to be an exercise for the reader or a to-do task for the author of the comment!

In fact it is not necessary to rebuild the dist/ folder because:

1. the workflow .github/workflows/check-dist.yml independently rebuilds and checks the consistency of the dist/ folder

2. in practice the result of rebuilding the dist/ folder under the currently supported Node.js 16, 18 and 20 versions is identical anyway, with:

   npm run format
   npm run build
   git status

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[github-actions]

🎉 This PR is included in version 5.8.4 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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