[eas-cli] disable pending build check

[wkozyra95]

Checklist

• I've added an entry to CHANGELOG.md if necessary.

Why

Turtle is now responsible for handling build concurrency so we can allow scheduling multiple builds at a time.

How

Remove check, handle error explicitly

Test Plan

Changed max build to 0 in local www and run build

[github-actions]

Size Change: -777 B (0%)

Total Size: 32.8 MB

Filename	Size	Change
./packages/eas-cli/dist/eas-linux-x64.tar.gz	32.8 MB	-777 B (0%)

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