feat: Add bun test runner integration#1486

Abhijeet Prasad (AbhiPrasad) wants to merge 2 commits intomainbraintrustdata/braintrust-sdk-javascript:mainfrom

abhi-bun-test-runner-integrationbraintrustdata/braintrust-sdk-javascript:abhi-bun-test-runner-integrationCopy head branch name to clipboard