fix(core): Report actual item count in client reports of envelope send failures - #25185

fix(core): Report actual item count in client reports of envelope send failures#25185

Lms24 merged 2 commits into

developgetsentry/sentry-javascript:developfrom

fix/client-report-envelope-loss-quantitygetsentry/sentry-javascript:fix/client-report-envelope-loss-quantityCopy head branch name to clipboard