fix: Pivot table not sorting formatted numeric column properly (apach…

…e#5709)

* fix: Pivot table not sorting formatted numeric column properly

* refactor(lint): fixed lint error

(cherry picked from commit 4121d57)

superset/assets/src/visualizations/pivot_table.js

@@ -35,6 +35,7 @@ module.exports = function (slice, payload) {
       const tdText = $(this)[0].textContent;
       if (!isNaN(tdText) && tdText !== '') {
         $(this)[0].textContent = d3format(format, tdText);
+        $(this).attr('data-sort', tdText);
       }
     });
   });