fix(anthropic): enable messages.stream() in auto-instrumentation e2e tests#1696

Stephen Belanger (Qard) wants to merge 2 commits intomainbraintrustdata/braintrust-sdk-javascript:mainfrom

fix/anthropic-stream-helper-auto-instrumentationbraintrustdata/braintrust-sdk-javascript:fix/anthropic-stream-helper-auto-instrumentationCopy head branch name to clipboard