chore: move `hof` under `r/leon` #6413

Job	Run time
setup	4s
Run Main (gnodev) / Go Linter / lint	31s
Run Main (gnodev) / Go Test / test	50s
Run Main (gnodev) / Go Build / generated	14s
Run Main (gnofaucet) / Go Linter / lint	17s
Run Main (gnofaucet) / Go Build / generated	10s
Run Main (gnofaucet) / Go Test / test	28s
Run Main (gnogenesis) / Go Build / generated	7s
Run Main (gnogenesis) / Go Test / test	25s
Run Main (gnogenesis) / Go Linter / lint	29s
Run Main (gnohealth) / Go Build / generated	11s
Run Main (gnohealth) / Go Linter / lint	33s
Run Main (gnohealth) / Go Test / test	18s
Run Main (gnokeykc) / Go Linter / lint	21s
Run Main (gnokeykc) / Go Build / generated	11s
Run Main (gnokeykc) / Go Test / test	22s
Run Main (gnomd) / Go Linter / lint	24s
Run Main (gnomd) / Go Build / generated	9s
Run Main (gnomd) / Go Test / test	23s
Run Main (gnomigrate) / Go Build / generated	13s
Run Main (gnomigrate) / Go Linter / lint	28s
Run Main (gnomigrate) / Go Test / test	16s
	7m 24s

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