test(e2e): Add e2e metrics tests in Next.js 16#18643

chargome merged 2 commits intodevelopgetsentry/sentry-javascript:developfrom

cg-JS-1156/add-e2e-tests-for-metricsgetsentry/sentry-javascript:cg-JS-1156/add-e2e-tests-for-metricsCopy head branch name to clipboard