fix: Add codebuild to ci_provider file

[danbroooks]

• Closes Detect and capture env vars from AWS CodeBuild including ciBuildId #8101

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[jennifer-shehane]

@danbroooks Thanks for the contribution! Could you please sign our CLA?

[jennifer-shehane]

Closing due to inactivity in favor of #8159 so we can get this out for the release today.