vit: fix tests

pkgs/applications/misc/vit/default.nix

@@ -1,6 +1,8 @@
 { lib
 , python3Packages
-, taskwarrior }:
+, taskwarrior
+, glibcLocales
+}:
 
 with python3Packages;
 
@@ -21,6 +23,8 @@ buildPythonApplication rec {
     urwid
   ];
 
+  checkInputs = [ glibcLocales ];
+
   makeWrapperArgs = [ "--suffix" "PATH" ":" "${taskwarrior}/bin" ];
 
   preCheck = ''