chore(cli): bump defaults versions

[jycouet]

Closes: #721

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Making the update script a bit more open to check templates & shared stuff.
Let me know if it's "too much" :)

[changeset-bot]

🦋 Changeset detected

Latest commit: c443857

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

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sv	Patch

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[pkg-pr-new]

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npx https://pkg.pr.new/sveltejs/cli/sv@722

npx https://pkg.pr.new/sveltejs/cli/svelte-migrate@722

commit: c443857

[manuel3108]

Same test issues as in #720 for whatever reason.
In the past we had some different opinions on this script overall. I don't think that those dicussions have been public though.

One of the main thoughts was that package managers are already fetching and installing the newest version for us if it's a first install (at least for patches, not sure about minors, don't think so for majors). So why should we bother keeping these up to date? But tbh, having a look at the div, this would barely make a difference in this case.

[jycouet]

With the update tests are now good ✌️