Release to unstable as a team upload.

debian/changelog

@@ -1,10 +1,10 @@
-qt6-base (6.4.2+dfsg-2) UNRELEASED; urgency=medium
+qt6-base (6.4.2+dfsg-2) unstable; urgency=medium
 
-  [ Lisandro Damián Nicanor Pérez Meyer ]
+  * Team upload.
   * Update symbols files with buildd's logs.
   * Force the usage of the shared version of libzstd (Closes: #1030546).
 
- -- Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>  Mon, 06 Feb 2023 14:35:39 -0300
+ -- Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org>  Mon, 06 Feb 2023 15:50:58 -0300
 
 qt6-base (6.4.2+dfsg-1) unstable; urgency=medium