Fix `no_recursion` support on maps #2740

Job	Run time
typos	4s
test (examples)	7m 7s
test (utoipa)	11s
test (utoipa-gen)	2m 23s
test (utoipa-swagger-ui-vendored)	14s
test (utoipa-swagger-ui)	8s
test (utoipa-redoc)	13s
test (utoipa-rapidoc)	13s
test (utoipa-scalar)	9s
test (utoipa-axum)	5s
test (utoipa-config)	10s
test (utoipa-actix-web)	5s
	11m 2s

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