Update changelog for 1:2.3.21+dfsg1-3 release

Author: nmeyerhans

debian/changelog

@@ -1,3 +1,9 @@
+dovecot (1:2.3.21+dfsg1-3) unstable; urgency=medium
+
+  * [883dc1a] Add libtirpc-dev to build-depends (Closes: #1065213)
+
+ -- Noah Meyerhans <[email protected]>  Sat, 09 Mar 2024 22:31:22 -0800
+
 dovecot (1:2.3.21+dfsg1-2) unstable; urgency=medium
 
   [ Christian Göttsche ]