[!812] [cmake][bugfix] Use install(PROGRAMS...) signature to install executable scripts
Merge branch 'feature/install-scripts-executable' into 'master'
ref:core/dune-common> CMake does not preserve file permissions when installing files. In order to get executable scripts installed, the install(PROGRAMS...) signature needs to be used instead of install(FILES...).
See merge request core/dune-common!812
(cherry picked from commit cc5ed571)
ee4cef6d [cmake][bugfix] Use install(PROGRAMS...) signature to install executable scripts