[Task] Replace `cfg-if` crate with `cfg_select`

[makubacki]

Rust 1.95.0 stablilizes the cfg_select!() macro fulfilling the same purpose of the cfg-if crate used throughout the patin repo.

This issue tracks replacing cfg-if with cfg_select!() to reduce crate dependencies for functionality available in stable.

[makubacki]

I made the changes for this and pushed them to this branch on my fork: https://github.com/makubacki/patina/tree/major_1_95_min_ver_cfg_select

I'm going to hold off creating a PR into patina/main until we move the MSRV up to 1.95.0.