Add PR link to changelog

Author: MichelLosier

packages/elastic_agent/changelog.yml

@@ -3,7 +3,7 @@
   changes:
     - description: Adds health_status field to status change logs data stream
       type: enhancement
-      link:
+      link: https://github.com/elastic/integrations/pull/15852
 - version: "2.6.6"
   changes:
     - description: Fixes Unhealthy Elastic Agent alert rule to include degraded status