fix: EntryData size test passes on 32-bit (#197)

EntryData doesn't need to be exactly 80 to test memory consumption, just
less than it.

src/traverse.rs

@@ -312,10 +312,10 @@ mod tests {
 
     #[test]
     fn size_of_entry_data() {
-        assert_eq!(
-            std::mem::size_of::<EntryData>(),
-            80,
-            "the size of this should not change unexpectedly as it affects overall memory consumption"
+        assert!(
+            std::mem::size_of::<EntryData>() <= 80,
+            "the size of this ({}) should not exceed 80 as it affects overall memory consumption",
+            std::mem::size_of::<EntryData>()
         );
     }
 }