message: Fix up changelog link for
  Unbreaks md-link-check workflow in the CI.
diff: -- Hide `ibc::Timestamp::now()` behind `clock` feature flag (#1612)[https://github.com/informalsystems/ibc-rs/pull/1612]
  +- Hide `ibc::Timestamp::now()` behind `clock` feature flag (#1612)[https://github.com/informalsystems/ibc-rs/issues/1612]
  