use same name for debug and release packages

[DenisBiryukov91]

use same name for debug and release packages

[milyin]

Different package names were made purposedly to allow to install both debug and release versions in parallel. Before this update there was special check which protected user from accidentally installing debug variant of the library and get awful performance due to this.
But this approach existed in assumption that installation is always performed into user's operating system (/usr/lib, etc)
As we see now, that actually installation is just some operation which can be wrapped by another cmake script, I'm ok to make update which maximally satisfies the assumption made by this script, this is more important now.
Precisely, this update helps to fix problem with compatibility with amend_cmake library used by ros2: eclipse-zenoh/zenoh-cpp#188