Fix link to PR #27609 (#1450)

Author: shesek

_topics/en/package-relay.md

@@ -111,7 +111,7 @@ optech_mentions:
     url: /en/newsletters/2023/07/26/#reliable-transaction-confirmation
 
   - title: "Bitcoin Core #27609 makes the submitpackage RPC available on non-regtest networks"
-    url: /en/newsletters/2023/10/11/#bitcoin-core-28331
+    url: /en/newsletters/2023/10/11/#bitcoin-core-27609
 
 ## Optional.  Same format as "primary_sources" above
 see_also: