Support for acts@19.0.0
Accommodate changes in https://github.com/acts-project/acts/pull/1203
These changes are backwards incompatible, so acts@19: is now required in the CMakeLists.txt
Accommodate changes in https://github.com/acts-project/acts/pull/1203
These changes are backwards incompatible, so acts@19: is now required in the CMakeLists.txt