feat(validator): Introduce `responseValidator` #6158

Job	Run time
Deno	13s
Checking if it's valid for JSR	10s
Main	20s
Bun	5s
Fastly Compute	44s
AWS Lambda	45s
Lambda@Edge	47s
Node.js v18.18.2	48s
Node.js v20.x	46s
Type & Bundle size Check on PR	57s
workerd	56s
Node.js v22.x	47s
Type & Bundle size Check on Main	0s
Coverage	0s
	7m 18s

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