remove home, supports-color 0.2 and update toml, color-eyre (#2133)

1. Remove dependency on `home`, since `std::env::home_dir` is fixed and
undeprecated since Rust 1.85.
2. Remove dependency on `supports-color 0.2`, since it's outdated and
not used.
3. `toml 0.8` is outdated. Updated to `0.9`.
4. `color-eyre 0.6.3` is outdated. Updated to `0.6.5`.

Author: usamoi