add build badge & remove reference to circleCI

[JeffGreiner-eaton]

Fixes BLUI-5710.

Changes proposed in this Pull Request:

• add build badge for Github workflow
• remove circleCI references in publish readme
• update blui-ci name space to Build

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[github-actions[bot]]

Visit the preview URL for this PR (updated for commit f88f4ce):

https://blui-angular-login--pr324-fix-blui-5710-update-ords3q2f.web.app

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