Prepare debian changelog for 3.11.16
diff --git a/debian/changelog b/debian/changelog
index acd87ed..44611de 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -2,7 +2,7 @@
 
   * New release
 
- -- Stefan Miklosovic <smiklosovic@apache.org>  Wed, 09 Aug 2023 23:42:00 +0200
+ -- Stefan Miklosovic <smiklosovic@apache.org>  Tue, 15 Aug 2023 15:25:17 +0200
 
 cassandra (3.11.15) unstable; urgency=medium