chore: fix changelog PR link

Co-authored-by: linear-code[bot] <222613912+linear-code[bot]@users.noreply.github.com>

Author: linear-code[bot]

CHANGELOG.md

@@ -8,7 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Fixed
-- Upgraded `curl`/`libcurl` in the Docker image to `8.20.0-r0` to address CVE-2026-6253. [#1442](https://github.com/sourcebot-dev/sourcebot/pull/1442)
+- Upgraded `curl`/`libcurl` in the Docker image to `8.20.0-r0` to address CVE-2026-6253. [#1451](https://github.com/sourcebot-dev/sourcebot/pull/1451)
 
 ## [5.1.1] - 2026-07-14