Prefer keyword signature of CMake command target_link_libraries

[mloskot]

This task is about a slight modernisation of the CMake configuration to use the keyword-based signatures.
The keyword signatures also make it explicit if a dependency is a build requirement and/or usage requirement.

The plain and keyword calls to target_link_libraries (and possibly other target_* commands) can not be mixed as per https://cmake.org/cmake/help/latest/policy/CMP0023.html
Otherwise, CMake issues errors

The plain signature for `target_link_libraries` has already been used with the target "xxx". 
All uses of `target_link_libraries with` a target must be either all-keyword or all-plain.

References

• Blocking Enable linking against static cURL on Windows #2514

[kbevers]

@mloskot Is this something you want to take a stab at? If so, it would be good get that done in time for 8.0.0RC1 which will be prepared around February 20th.

[mloskot]

@kbevers Yes, I'm going to work on it this week

[kbevers]

Awesome!

[mloskot]

@kbevers I covered this in PR #2533