hack: update license header
hack: update license header

Signed-off-by: Vicent Marti <2a2c16577cf04fb953d196f935e266724d4c66a1@strn.cat>

mahak/vitess,tinyspeck/vitess,mahak/vitess,mahak/vitess,mahak/vitess,tinyspeck/vitess,tinyspeck/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,tinyspeck/vitess,vitessio/vitess,tinyspeck/vitess,mahak/vitess,tinyspeck/vitess,mahak/vitess,vitessio/vitess,vitessio/vitess,tinyspeck/vitess