message: Document OpenSSL module change
diff: @@ -25,6 +25,8 @@ is based on [Keep a Changelog](https://keepachangelog.com).
  - Passing a response promise to a run-delayed continuation could result in a
  heap-use-after-free if the actor terminates before the action runs. The
  destructor of the promise now checks for this case.
  +- Fix OpenSSL 3.0 warnings when building the OpenSSL module by switching to
  + newer EC-curve API.
  ### Changed
  