Do not cleanup artefact folder before creating a new one
Do not cleanup artefact folder before creating a new one

This avoids deletion of the first artefacts when creating multiple ones

gds-attic/transactions-explorer,gds-attic/transactions-explorer,gds-attic/transactions-explorer,alphagov/transactions-explorer,gds-attic/transactions-explorer,alphagov/transactions-explorer,alphagov/transactions-explorer,gds-attic/transactions-explorer,alphagov/transactions-explorer,alphagov/transactions-explorer