Release to experimental.

debian/changelog

@@ -1,10 +1,10 @@
-qt6-base (6.3.1+dfsg-2) UNRELEASED; urgency=medium
+qt6-base (6.3.1+dfsg-2) experimental; urgency=medium
 
   [ Patrick Franz ]
   * Update symbols from buildlogs.
   * Add CXXFLAGS to fix build failure on armel.
 
- -- Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>  Sat, 16 Jul 2022 01:58:16 +0200
+ -- Patrick Franz <deltaone@debian.org>  Sat, 16 Jul 2022 02:16:45 +0200
 
 qt6-base (6.3.1+dfsg-1) experimental; urgency=medium