CLI Version check fixes

[Zeko369]

Closes: #3566 #3565

What are the changes and their implications?

• Fix types
• Add a getGlobalPkgManager helper function
• Run update check only on blitz new
• Remove checking local package manager

The issue before regarding noop is because when running blitz new it wasn't able to find the local package manager. But now with getGlobalPkgManager helper function we can determine if the user is using pnpm or yarn globally.

Bug Checklist

• [ ] Integration test added (see test docs if needed)

Feature Checklist

• [ ] Integration test added (see test docs if needed)

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 18d0a5b3c6dcbbc18d23cc8cbfbf783cc34de807

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

This PR includes changesets to release 7 packages

Name	Type
blitz	Patch
@blitzjs/auth	Patch
@blitzjs/next	Patch
@blitzjs/rpc	Patch
@blitzjs/codemod	Patch
@blitzjs/config	Patch
@blitzjs/generator	Patch

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