Add float scalar input support (#18751) #4445

Job	Run time
test-coreml / test-backend-macos (coreml, operators) / macos-job	2h 0m 23s
test-coreml / test-backend-macos (coreml, models) / macos-job	13m 33s
test-coreml / package-golden-artifacts	0s
test-coreml / test-backend-linux	0s
	2h 13m 56s

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