docs(create): create new projects always using latest version

[iamandrewluca]

Warning

⚠️ You're running an old version of create-keystone-app, please update to 10.0.2

> npm create keystone-app
> npx
> create-keystone-app


✨ You're about to generate a project using Keystone 6 packages.
⚠️  You're running an old version of create-keystone-app, please update to 10.0.2
✔ What directory should create-keystone-app generate your app into? · test-keystone
...

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[dcousens]

interesting, I thought this was implied but I suppose it may depend on cache?

[iamandrewluca]

Probably cache, probably the user has the package installed globally