update changelog

Author: billyvg

CHANGELOG.md

@@ -62,7 +62,7 @@ Relevant for users of the `@sentry/nextjs` package: If you have previously confi
 Work in this release was contributed by @trzeciak, @gurpreetatwal, @ykzts and @lizhiyao. Thank you for your
 contributions!
 
-## 8.34.0-internal.0
+## 8.35.0-alpha.0
 
 - feat(replay): Allow capture of replays that are "too long" in order to help debug errors occuring outside of normal
   replay duration window