Fix canonical data check script

The script was reporting version as different because of windows line
ending. These line endings are now being removed before the version
comparison.

scripts/canonical_data_check.sh

         continue
     fi
 
-    track_data_version=$(cat $track_exercise_version_file_path)
+    track_data_version=$(cat $track_exercise_version_file_path | sed 's/\r$//')
 
     if [ "$track_data_version" = "$canonical_data_version" ]
     then