ci: fix pnpm publish to use OIDC trusted publishing with provenance#1451

AbhiPrasad merged 1 commit intomainbraintrustdata/braintrust-sdk-javascript:mainfrom

fix/npm-oidc-provenance-publishbraintrustdata/braintrust-sdk-javascript:fix/npm-oidc-provenance-publishCopy head branch name to clipboard