Allow disabling batched queries

We are trying to disable batched queries using the provided config setting: 'batched_queries' = false,. The app still process all incoming queries, however, seemingly ignoring the setting.
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I would expect to be thrown an error, for there to be an error message for each subsequent batched request, or for the additional requests to have been ignored entirely.
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Steps to reproduce
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1. Set 'batched_queries' => false in the config/lighthouse.php file
2. Rebuild containers and/or clear caches as appropriate
3. Send the below JSON as the body of a POST request to the graphql endpoint
4. Receive a response containing an array of two results instead of denying the request
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[
	{
		"query": "query { batchOne: me { uuid } }"
	},
	{
		"query": "query { batchTwo: user(uuid: \"{UNIQUE_ID}\") { first_name } }"
	}
]

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Output/Logs
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Lighthouse Version
^5.38

Start with config/lighthouse.php and the GraphQL endpoint, then reproduce the issue using the provided batched JSON request with batched_queries set to false. Trace where the setting is read and how batched requests are handled; done means the configured behavior consistently rejects or ignores batched requests rather than returning two results.