fix: allows scanning of root Earthfile (#86) #476

Job	Run time
ci / discover	19s
ci / check / ./cli+check	27s
ci / check / ./foundry/api+check	42s
ci / check / ./lib/project+check	26s
ci / check / ./lib/tools+check	34s
ci / build / ./cli+build	40s
ci / build / ./docs+build	28s
ci / build / ./foundry/api+build	25s
ci / package	0s
ci / test / .+test	24s
ci / test / ./cli+test	38s
ci / test / ./foundry/api+test	35s
ci / test / ./lib/project+test	27s
ci / test / ./lib/tools+test	25s
ci / release / ./cli (github)	2m 24s
ci / docs / ./docs+docs	37s
ci / release / ./foundry/api (docker)	1m 7s
ci / release / ./tools/argocd (docker)	54s
ci / final	6s
ci / deploy	0s
	11m 38s

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