fix(cli): exclude non directories and DS_Store from providers list #845

Job	Run time
test-e2e-windows (build)	1m 12s
test-e2e (build)	4m 0s
test-e2e-windows (ide)	4m 14s
test-e2e (ide)	4m 21s
test-e2e-windows (ssh)	1m 22s
test-e2e (integration)	4m 2s
test-e2e-windows (up-docker)	5m 54s
test-e2e (machine)	3m 23s
test-e2e-windows (up-docker-build)	5m 51s
test-e2e (machineprovider)	4m 12s
test-e2e-windows (up-docker-compose)	10m 56s
test-e2e (provider)	3m 17s
test-e2e (proxyprovider)	4m 5s
test-e2e (ssh)	3m 52s
test-e2e (up)	5m 21s
test-e2e (up-docker)	4m 53s
test-e2e (up-podman)	3m 59s
test-e2e (up-docker-compose)	5m 48s
test-e2e (up-docker-build)	4m 23s
test-e2e (up-docker-compose-build)	4m 37s
	1h 29m 42s

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