fix(convert-formula): _mapdata control name must use the formula one

* test/integration/default/controls/_mapdata.rb: use `TEMPLATE` to let
  `conver-formula.sh` automatically rename the control.

Author: baby-gnu

test/integration/default/controls/_mapdata.rb

@@ -2,7 +2,7 @@
 
 require 'yaml'
 
-control 'template._mapdata' do
+control 'TEMPLATE._mapdata' do
   title '`map.jinja` should match the reference file'
 
   ### Method