Use atty crate to check if within a terminal for piping

[ismet55555]

• Issue: Tracking Issue for IsTerminal / is_terminal rust-lang/rust#98070 (comment)
• https://github.com/softprops/atty

:: error[E0658]: use of unstable library feature 'is_terminal'
::  --> src/main.rs:3:28
::   |
:: 3 | use std::io::{self, stdin, IsTerminal, Read};
::   |                            ^^^^^^^^^^
::   |
::   = note: see issue #98070 <https://github.com/rust-lang/rust/issues/98070> for more information
::
:: error[E0658]: use of unstable library feature 'is_terminal'
::   --> src/main.rs:32:43
::    |
:: 32 |         let is_stdin_available = !stdin().is_terminal();
::    |                                           ^^^^^^^^^^^
::    |
::    = note: see issue #98070 <https://github.com/rust-lang/rust/issues/98070> for more information
::
:: For more information about this error, try `rustc --explain E0658`.