Add minimal wheel build mode #264

Job	Run time
test-webgpu / test-backend-linux (webgpu, operators) / linux-job	10m 3s
test-webgpu / test-backend-linux (webgpu, models) / linux-job	9m 28s
test-webgpu / test-backend-macos	0s
test-webgpu / package-golden-artifacts	0s
	19m 31s

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