chore: fix CHANGELOG PR id mismatch

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: msukkari

CHANGELOG.md

@@ -26,7 +26,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Verified GitHub review webhook deliveries before processing them. [#1378](https://github.com/sourcebot-dev/sourcebot/pull/1378)
 - Passed Zoekt index parameters via argv to preserve revision names with punctuation. [#1376](https://github.com/sourcebot-dev/sourcebot/pull/1376)
 - [EE] Validated OAuth bearer token scopes before allowing access to the Sourcebot MCP resource server. [#1396](https://github.com/sourcebot-dev/sourcebot/pull/1396)
-- Added HTTP security headers (HSTS, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy, and CSP frame-ancestors) to all web app responses. [#1397](https://github.com/sourcebot-dev/sourcebot/pull/1407)
+- Added HTTP security headers (HSTS, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy, and CSP frame-ancestors) to all web app responses. [#1407](https://github.com/sourcebot-dev/sourcebot/pull/1407)
 
 ## [5.0.4] - 2026-06-18