Besides Debian packages, RPM is another common format for installing binary packages on Linux.
### Stories
- [x] Develop a prototype: Does the [CPack RPM Generator](https://cmake.org/cmake/help/latest/cpack_gen/rpm.html) fulfill our needs?
- [x] Upload RPMs in addition to Debs from our CI workflows.
- [x] Add an option for using RPMs to the installer and documentation.
Besides Debian packages, RPM is another common format for installing binary packages on Linux.