Add a change log entry.

hjoliver · hjoliver · commit 4beafcdea468 · 2025-02-27T17:01:47.000+13:00
diff --git a/changes.d/6639.fix.md b/changes.d/6639.fix.md
@@ -0,0 +1 @@
+Ensure that shutdown event handlers are killed if they exceed the process pool timeout.

Original file line number	Diff line number	Diff line change
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	`1`	`+Ensure that shutdown event handlers are killed if they exceed the process pool timeout.`