Fix typo.

debian/changelog

@@ -6,7 +6,7 @@ qt6-base (6.6.0+dfsg-5) UNRELEASED; urgency=medium
     - enable_skip_plugins.patch
     These set QT_SKIP_AUTO_PLUGIN_INCLUSION and
     QT_SKIP_AUTO_QML_PLUGIN_INCLUSION to ON by default, thus avoiding
-    unnecesary build dependencies on plugins.
+    unnecessary build dependencies on plugins.
   * Refresh patches.
 
  -- Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>  Wed, 01 Nov 2023 18:16:57 -0300