[eas-cli] Add eas update:list-embedded command

[gwdp]

Why

Gives operators a way to browse all registered embedded updates for an app, with optional filtering and cursor pagination. Pairs with the universe B12 App.embeddedUpdatesPaginated query.

Ref ENG-21033

How

• New eas update:list-embedded command with optional --platform, --runtime-version, --channel, --limit (default 25, max 50), and --after-cursor flags
• Builds an EmbeddedUpdateFilterInput from provided flags, calls EmbeddedUpdateQuery.viewPaginatedAsync
• Outputs one formatted block per result; --json returns {embeddedUpdates, pageInfo}
• Prints next-page hint with cursor when hasNextPage is true

Test Plan

• yarn tsc — no errors
• yarn lint — 4 pre-existing GQL errors (B12 schema not yet merged to universe main); no new errors

[gwdp]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• [eas-cli] Add eas update:list-embedded command #3722 👈 (View in Graphite)
• [eas-cli] Add eas update:view-embedded command #3721
• [eas-cli] Add eas update:upload-embedded command #3720
• main

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[github-actions]

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[linear]

ENG-21033