[ENG-1395] support new build status: new

[dsokal]

Checklist

• I've added an entry to CHANGELOG.md if necessary.
• I've tagged the changelog entry with [EAS BUILD API] if it's a part of a breaking change to EAS Build API (only possible when updating @expo/eas-build-job package).

Why

new is now the initial build status. A build is in this state when it's not yet enqueued. This can happen when the account reaches the concurrency limit.

Part of https://linear.app/expo/issue/ENG-1395/add-status-to-reflect-prequeue-state-to-www
www PR: https://github.com/expo/universe/pull/7756

How

• I grepped the repo for BuildStatus and added support for the new status.
• Deleted getPendingBuildIdAsync as it hasn't been used anywhere.

Test Plan

I ran a build in staging and the CLI didn't break.

[github-actions]

Size Change: -1.67 kB (0%)

Total Size: 37.6 MB

Filename	Size	Change
./packages/eas-cli/dist/eas-linux-x64.tar.gz	37.6 MB	-1.67 kB (0%)

_{compressed-size-action}

[linear]

ENG-1395 Add status to reflect "prequeue" state to www

Currently we don't reflect "prequeue" in the build web UI, but this is useful for developers to know if they are constrained by their concurrencies (which they can act on to resolve by adding more to their account)