refactor!(dbdump): remove cmd causing error #413

Job	Run time
fmt	10s
validate (envs/production)	18s
validate (envs/staging)	20s
validate (modules/api)	9s
validate (modules/cloudflare)	8s
validate (modules/dbdump)	11s
validate (modules/dbsetup)	9s
validate (modules/enmeshed)	11s
validate (modules/gcloud/cluster)	9s
validate (modules/gcloud/gcloud_dbdump_reader)	12s
validate (modules/gcloud/gcloud_dbdump_writer)	13s
validate (modules/gcloud/gcloud_mysql)	16s
validate (modules/gcloud/gcloud_postgres)	15s
validate (modules/hydra)	27s
validate (modules/ingress)	14s
validate (modules/ingress-nginx)	11s
validate (modules/kratos)	10s
validate (modules/redis)	12s
validate (modules/rocket-chat)	12s
validate (modules/tls-self-signed-cert)	21s
	4m 28s

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