Fix public constructor from miniz_oxide status

Avoids leaking the dependency on `miniz_oxide` into the public interface
by making a constructor taking a status argument crate internal. It
would otherwise not be possible to replace the deflate decoder without
breaking that interface.

src/error.rs

@@ -68,7 +68,7 @@ pub struct InflateError {
 }
 
 impl InflateError {
-    pub fn new(status: TINFLStatus) -> Self {
+    pub(crate) fn new(status: TINFLStatus) -> Self {
         Self { status }
     }
 }