I am uploading a NMU to DELAYED/10 in order to fix this.
The debdiff is attached.
diff -Nru deepin-notifications-3.3.4/debian/changelog
deepin-notifications-3.3.4/debian/changelog
--- deepin-notifications-3.3.4/debian/changelog 2018-06-21 09:42:58.000000000
+0200
+++ deepin-notifications-3.3.4/debian/changelog 2023-09-23 22:56:46.000000000
+0200
@@ -1,3 +1,10 @@
+deepin-notifications (3.3.4-1.1) unstable; urgency=medium
+
+ * Non-maintainer upload.
+ * Drop unnecessary GTK 2 build dependency. (Closes: #959090)
+
+ -- Bastian Germann <[email protected]> Sat, 23 Sep 2023 22:56:46 +0200
+
deepin-notifications (3.3.4-1) unstable; urgency=medium
* Team upload.
diff -Nru deepin-notifications-3.3.4/debian/control
deepin-notifications-3.3.4/debian/control
--- deepin-notifications-3.3.4/debian/control 2018-06-13 08:36:44.000000000
+0200
+++ deepin-notifications-3.3.4/debian/control 2023-09-23 22:56:39.000000000
+0200
@@ -10,7 +10,6 @@
libdframeworkdbus-dev,
libdtkwidget-dev,
libgsettings-qt-dev,
- libgtk2.0-dev,
libqt5svg5-dev,
pkg-config,
qtdeclarative5-dev,