fabric: unify CLI with `jsonargparse` [wip] #16827

Job	Run time
pl-cpu (macOS-14, lightning, 3.12.7, 2.5.1)	14m 43s
pl-cpu (macOS-14, pytorch, 3.12.7, 2.6)	16m 25s
pl-cpu (macOS-14, lightning, 3.11, 2.2.2)	14m 45s
pl-cpu (macOS-14, lightning, 3.12.7, 2.4.1)	16m 39s
pl-cpu (macOS-14, lightning, 3.11, 2.3)	14m 54s
pl-cpu (macOS-14, pytorch, 2.1, oldest)	11m 9s
pl-cpu (macOS-14, lightning, 3.10, 2.1)	13m 47s
pl-cpu (ubuntu-22.04, lightning, 3.11, 2.3)	15m 57s
pl-cpu (ubuntu-22.04, lightning, 3.12.7, 2.5.1)	19m 29s
pl-cpu (macOS-14, pytorch, 3.10, 2.7)	9m 25s
pl-cpu (ubuntu-22.04, lightning, 3.11, 2.2.2)	15m 56s
pl-cpu (macOS-14, pytorch, 3.12, 2.8)	13m 53s
pl-cpu (ubuntu-22.04, lightning, 3.12.7, 2.4.1)	22m 8s
pl-cpu (ubuntu-22.04, pytorch, 3.12, 2.8)	15m 26s
pl-cpu (ubuntu-22.04, lightning, 3.10, 2.1)	14m 47s
pl-cpu (ubuntu-22.04, pytorch, 2.1, oldest)	17m 44s
pl-cpu (ubuntu-22.04, pytorch, 3.12.7, 2.6)	18m 16s
pl-cpu (windows-2022, lightning, 3.11, 2.2.2)	15m 45s
pl-cpu (windows-2022, pytorch, 3.10, 2.7)	15m 42s
pl-cpu (ubuntu-22.04, pytorch, 3.10, 2.7)	15m 42s
pl-cpu (windows-2022, lightning, 3.10, 2.1)	14m 41s
pl-cpu (windows-2022, lightning, 3.12.7, 2.5.1)	17m 42s
pl-cpu (windows-2022, lightning, 3.11, 2.3)	16m 23s
pl-cpu (windows-2022, pytorch, 3.12.7, 2.6)	18m 16s
pl-cpu (windows-2022, pytorch, 2.1, oldest)	16m 31s
pl-cpu (windows-2022, pytorch, 3.12, 2.8)	15m 34s
pl-cpu (windows-2022, lightning, 3.12.7, 2.4.1)	17m 40s
pl-cpu-guardian	3s
	7h 9m 22s

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