Update src/corim.rs

Co-authored-by: setrofim <[email protected]>

Author: shefali-kamal

src/corim.rs

@@ -2857,7 +2857,7 @@ mod tests {
         ciborium::into_writer(&validity_map, &mut actual_cbor).unwrap();
 
         let expected_cbor = vec![
-            0xa2, // map(indef)
+            0xa2, // map(2)
               0x00, // key: 0 [not-before]
               0xc1, // value: tag(1)
                 0x01, // 1