chore: prepare for release

update version to v0.5.5.

fixes: #48
changes name of `image-formats` to `image_formats` to more allign with the naming convention of the library.

crates/cli/src/main.rs

@@ -344,6 +344,7 @@ fn decode_command(
             rxing::DecodeHintValue::PureBarcode(*pure_barcode),
         );
     }
+
     if let Some(character_set) = character_set {
         hints.insert(
             rxing::DecodeHintType::CHARACTER_SET,