feat(validator): Introduce `responseValidator` #6159

Job	Run time
Bun	10s
Deno	15s
Main	1m 45s
Checking if it's valid for JSR	10s
Fastly Compute	45s
AWS Lambda	45s
Lambda@Edge	45s
Node.js v18.18.2	51s
Node.js v20.x	49s
Type & Bundle size Check on PR	54s
workerd	50s
Node.js v22.x	47s
Type & Bundle size Check on Main	0s
Coverage	10s
	8m 56s

Provide feedback