Bump actions/download-artifact from 3 to 4 #202

Job	Run time
[sys] environment setup (3.10, ubuntu-22.04, v0.10.4)	47s
detect file changes since last push	7s
[unit] webserver 02	0s
[build] docker images	0s
[unit] webserver 01	0s
[unit] agent	0s
[unit] storage	0s
[unit] webserver 03	0s
[unit] api	0s
[unit] api-server	0s
[unit] autoscaling	0s
[unit] catalog	0s
[unit] clusters-keeper	0s
[unit] datcore-adapter	0s
[unit] aws-library	0s
[unit] dask-sidecar	0s
[unit] dask-task-models-library	0s
[unit] director	0s
[unit] director-v2	0s
[unit] osparc-gateway-server	0s
[unit] dynamic-scheduler	0s
[unit] payments	0s
[unit] resource-usage-tracker	0s
[unit] dynamic-sidecar	0s
[unit] frontend	0s
[unit] python-linting	0s
[unit] invitations	0s
[unit] postgres-database	0s
[unit] service-integration	0s
[unit] models-library	0s
[unit] service-library	0s
[unit] settings-library	0s
[unit] simcore-sdk	0s
[int] director-v2 01	0s
[int] webserver 01	0s
[int] webserver 02	0s
[int] director-v2 02	0s
[int] dynamic-sidecar	0s
[int] osparc-gateway-server	0s
[int] simcore-sdk	0s
[sys] public api	0s
[sys] deploy simcore	0s
[sys] e2e	0s
unit-tests	1s
integration-tests	1s
system-tests	1s
deploy to dockerhub	0s
	57s

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