fix const-ness of AnaReentrantAlgorithm::execute()
That function should obviously be const to match Athena, but it is not. Most likely this is just a copy-paste error when I first created the class from AnaReentrantAlgorithm.
That function should obviously be const to match Athena, but it is not. Most likely this is just a copy-paste error when I first created the class from AnaReentrantAlgorithm.