Add support for correct types for signup and signin endpoints #2359

Job	Run time
setup	4s
test (./examples/aws/with-emailpassword)	2m 39s
test (./examples/next/with-emailpassword)	1m 40s
test (./examples/loopback/with-emailpassword)	2m 6s
test (./examples/koa/with-emailpassword)	2m 4s
test (./examples/express/with-emailpassword)	6m 31s
test (./examples/cloudflare-workers/with-emailpassword)	6m 17s
test (./examples/cloudflare-workers/with-email-password-hono-be-only)	1m 13s
test (./examples/fastify/with-emailpassword)	1m 39s
test (./examples/nest/with-emailpassword)	2m 13s
test (./examples/hapi/with-emailpassword)	1m 33s
	27m 59s

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