What's Changed
- [ci] update centos7 docker image url by @vvolkl in #17
- Propagate upstream changes: Geant4Hits header removed in dd4hep by @vvolkl in #22
- cmake: set CMAKE_CXX_STANDARD before finding dd4hep by @vvolkl in #19
Full Changelog: v0.1pre07...v0.1pre08
