Remove pre-release version from release notes

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

Author: Copilot

Modules/Intent.Modules.Application.MediatR/release-notes.md

@@ -1,7 +1,3 @@
-### Version 4.5.2-pre.0
-
-- Improvement: Updated projectUrl to reference external documentation instead of local README.
-
 ### Version 4.5.1
 
 - Improvement: Detects existence and name of `CancellationToken` parameter before adding to the `Send` invocation.