F44 Changes: CMake: Use ninja generator by default & CMake 4.0

[travier]

See: https://fedoraproject.org/wiki/Changes/CMake_ninja_default

Change the default generator used in the %cmake macro from make to ninja. Affected projects are tracked in this copr repo, please check if your packages are failing there.

See: https://fedoraproject.org/wiki/Changes/CMake4.0

Update CMake to version 4.0. This version breaks compatibility with projects that specify cmake_minimum_required with only a lower bound less than 3.5. Affected projects are tracked in this copr repo, please check if your packages are failing there.

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The first change was made for dnf4 (https://src.fedoraproject.org/rpms/dnf/c/e6331a6663804a65258d8359476712aaeac86ef4?branch=rawhide) already.

Not completely sure if we need to do something for rpm-ostree as rpm-ostree builds its own copy of libdnf directly using the cmake crate: https://github.com/coreos/rpm-ostree/blob/main/rust/libdnf-sys/build.rs

Second change would similarly be fine.