Check for update on "first" command

[denelon]

Relevant area(s)

WinGet CLI

Description of the new feature / enhancement

WinGet is often not the latest available version on Windows. If WinGet is being invoked for the first time on a system, it should check for an update and prompt the user to update.

Proposed technical implementation details

No response

[github-actions]

The following issues might be duplicates:

• When the index is updated, WinGet should check for updates to itself and prompt. #6328
• Day 0 Update: Self-update on first command when client is outdated #6298

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