refactor: Update imports to use specific get_engine functions

src/modes/get.rs

@@ -1,6 +1,7 @@
 use anyhow::anyhow;
 
 use crate::compression_engine::CompressionType;
+use crate::compression_engine::get_compression_engine;
 use clap::Command;
 use std::path::PathBuf;
 use std::str::FromStr;