fix: 🔥 Fix closed event source #6092

Job	Run time
Checking if it's valid for JSR	9s
Main	2m 4s
Bun	10s
Fastly Compute	1m 3s
Deno	6h 0m 13s
AWS Lambda	1m 2s
Lambda@Edge	1m 6s
Node.js v18.18.2	1m 8s
Type & Bundle size Check on PR	1m 11s
Node.js v20.x	1m 4s
workerd	1m 8s
Node.js v22.x	1m 5s
Type & Bundle size Check on Main	0s
Coverage	0s
	6h 11m 23s

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