add issue to chlog

Author: crobert-1

.chloggen/sqlserver_page_life_expectancy.yaml

@@ -10,7 +10,7 @@ component: receiver/sqlserver
 note: Enable `sqlserver.page.life_expectancy` metric for all configurations
 
 # Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
-issues: []
+issues: [39940]
 
 # (Optional) One or more lines of additional information to render under the primary note.
 # These lines will be padded with 2 spaces and then inserted directly into the document.