feat(vercel-edge): Add metrics export (#18148)

closes #18151

ref #18147

Author: chargome

packages/vercel-edge/src/index.ts

@@ -16,6 +16,7 @@ export type {
   Stacktrace,
   Thread,
   User,
+  Metric,
 } from '@sentry/core';
 
 export type { VercelEdgeOptions } from './types';
@@ -98,6 +99,7 @@ export {
   createLangChainCallbackHandler,
   featureFlagsIntegration,
   logger,
+  metrics,
 } from '@sentry/core';
 
 export { VercelEdgeClient } from './client';