fix(ci): add COPILOT_API_KEY to e2e-canary workflow env#1960

Stephen Belanger (Qard) merged 1 commit intomainbraintrustdata/braintrust-sdk-javascript:mainfrom

fix/copilot-api-key-canarybraintrustdata/braintrust-sdk-javascript:fix/copilot-api-key-canaryCopy head branch name to clipboard