to_onnx return ONNXProgram #27270

Job	Run time
build-packages / build-packages (pytorch)	25s
build-packages / build-packages (fabric)	22s
build-packages / build-packages (lightning)	26s
build-packages / merge-artifacts	14s
install-pkg (ubuntu-22.04, pytorch, 3.9)	1m 58s
install-pkg (ubuntu-22.04, fabric, 3.11)	1m 38s
install-pkg (ubuntu-22.04, fabric, 3.9)	1m 43s
install-pkg (ubuntu-22.04, lightning, 3.11)	1m 54s
install-pkg (ubuntu-22.04, notset, 3.9)	1m 54s
install-pkg (macOS-14, fabric, 3.9)	1m 0s
install-pkg (ubuntu-22.04, notset, 3.11)	1m 46s
install-pkg (macOS-14, lightning, 3.9)	1m 2s
install-pkg (macOS-14, pytorch, 3.11)	44s
install-pkg (windows-2022, pytorch, 3.9)	1m 58s
install-pkg (macOS-14, fabric, 3.11)	43s
install-pkg (windows-2022, fabric, 3.9)	1m 51s
install-pkg (macOS-14, pytorch, 3.9)	1m 1s
install-pkg (macOS-14, notset, 3.9)	1m 6s
install-pkg (macOS-14, notset, 3.11)	41s
install-pkg (macOS-14, lightning, 3.11)	39s
install-pkg (windows-2022, lightning, 3.9)	1m 59s
install-pkg (ubuntu-22.04, pytorch, 3.11)	1m 56s
install-pkg (ubuntu-22.04, lightning, 3.9)	1m 54s
install-pkg (windows-2022, fabric, 3.11)	1m 50s
install-pkg (windows-2022, lightning, 3.11)	1m 58s
install-pkg (windows-2022, notset, 3.9)	2m 5s
install-pkg (windows-2022, notset, 3.11)	2m 0s
install-pkg (windows-2022, pytorch, 3.11)	1m 57s
install-pkg-guardian	2s
	38m 46s

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