Release to unstable.

debian/changelog

@@ -1,4 +1,4 @@
-qt6-base (6.3.1+dfsg-6) UNRELEASED; urgency=medium
+qt6-base (6.3.1+dfsg-6) unstable; urgency=medium
 
   [ Dmitry Shachnev ]
   * Make libqt6gui6 recommend qt6-qpa-plugins.
@@ -8,7 +8,7 @@ qt6-base (6.3.1+dfsg-6) UNRELEASED; urgency=medium
   * Update symbols from buildlogs.
   * Update lintian-overrides.
 
- -- Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>  Sun, 24 Jul 2022 19:36:07 +0300
+ -- Patrick Franz <deltaone@debian.org>  Mon, 15 Aug 2022 18:53:42 +0200
 
 qt6-base (6.3.1+dfsg-5) experimental; urgency=medium