Merge pull request #25546 from womfoo/sqlite-use-qt56

sqlitebrowser: switch to qt 5.6 - fixes build

pkgs/top-level/all-packages.nix

···
     flex = flex_2_5_35;
   };
 
-  sqlitebrowser = qt5.callPackage ../development/tools/database/sqlitebrowser { };
+  sqlitebrowser = libsForQt56.callPackage ../development/tools/database/sqlitebrowser { };
 
   sselp = callPackage ../tools/X11/sselp{ };