doc: clarify release notes for Node.js 14.21.2

Refs: #45775
PR-URL: #45846
Refs: nodejs/nodejs.org#4972
Reviewed-By: Filip Skokan <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: richardlau

doc/changelogs/CHANGELOG_V14.md

@@ -86,8 +86,7 @@
 
 #### OpenSSL 1.1.1s
 
-This update is a bugfix release and does not address any security
-vulnerabilities.
+This OpenSSL version does not address any security vulnerabilities.
 
 #### Root certificates updated to NSS 3.85