chore(doc): correct placement for merged changelog entry (#6132)

Signed-off-by: hainenber <[email protected]>

CHANGELOG.md

@@ -24,6 +24,9 @@ Main (unreleased)
 
 - Sort kubelet endpoint to reduce pressure on K8s's API server and watcher endpoints. (@hainenber)
 
+- Expose `physical_disk` collector from `windows_exporter` v0.24.0 to 
+  Flow configuration. (@hainenber)
+
 ### Bugfixes
 
 - Fix an issue in `remote.s3` where the exported content of an object would be an empty string if `remote.s3` failed to fully retrieve
@@ -121,9 +124,6 @@ v0.39.0 (2024-01-09)
 - `discovery.lightsail` now supports additional parameters for configuring HTTP client settings. (@ptodev)
 - Add `sample_age_limit` to remote_write config to drop samples older than a specified duration. (@marctc)
 
-- Expose `physical_disk` collector from `windows_exporter` v0.24.0 to 
-  Flow configuration. (@hainenber)
-
 - Handle paths in the Kubelet URL for `discovery.kubelet`. (@petewall)
 
 - `loki.source.docker` now deduplicates targets which report the same container