update SDK version

Author: lobsterkatie

examples/with-sentry/package.json

@@ -6,7 +6,7 @@
     "start": "next start"
   },
   "dependencies": {
-    "@sentry/nextjs": "^6.13.4",
+    "@sentry/nextjs": "^6.15.0",
     "next": "^10.0.8 || 11.x",
     "react": "^17.0.2",
     "react-dom": "^17.0.2"