fix(nextjs): Avoid wrapping middleware files when in standalone mode#18172

logaretm merged 2 commits intodevelopgetsentry/sentry-javascript:developfrom

awad/js-1079-sentry-causes-nextjs-16-build-to-fail-when-using-standalonegetsentry/sentry-javascript:awad/js-1079-sentry-causes-nextjs-16-build-to-fail-when-using-standaloneCopy head branch name to clipboard