fix: correct compression module imports

src/compression_engine/gzip.rs

@@ -9,7 +9,7 @@ use flate2::read::GzDecoder;
 use flate2::write::GzEncoder;
 use flate2::Compression;
 
-use crate::compression::CompressionEngine;
+use crate::compression_engine::CompressionEngine;
 
 #[derive(Debug, Eq, PartialEq, Clone, Default)]
 pub struct CompressionEngineGZip {}