Make cmake a suggestion of qt6-base-dev-tools instead of a hard dependency (Closes: #1019870).

debian/changelog

@@ -1,5 +1,9 @@
 qt6-base (6.4.0+dfsg-6) UNRELEASED; urgency=medium
 
+  [ Patrick Franz ]
+  * Make cmake a suggestion of qt6-base-dev-tools instead of a hard
+    dependency (Closes: #1019870).
+
  -- Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>  Tue, 18 Oct 2022 03:55:20 +0200
 
 qt6-base (6.4.0+dfsg-5) experimental; urgency=medium

debian/control

@@ -396,7 +396,8 @@ Package: qt6-base-dev-tools
 Architecture: any
 Multi-Arch: foreign
 Section: devel
-Depends: cmake, ${misc:Depends}, ${perl:Depends}, ${shlibs:Depends}
+Depends: ${misc:Depends}, ${perl:Depends}, ${shlibs:Depends}
+Suggests: cmake
 Description: Qt 6 base development programs
  Qt is a cross-platform C++ application framework. Qt's primary feature
  is its rich set of widgets that provide standard GUI functionality.