Avoid using default in HashBuffers::reset

miniz_oxide/src/deflate/buffer.rs

@@ -31,7 +31,10 @@ pub struct HashBuffers {
 impl HashBuffers {
     #[inline]
     pub fn reset(&mut self) {
-        *self = HashBuffers::default();
+        // Avoid `*self = default()` to prevent potential stack overflows.
+        self.dict.fill(0);
+        self.next.fill(0);
+        self.hash.fill(0);
     }
 }