GitHub Actions: Bump `actions/{up,down}load-artifact` from 3 to 4 #13

Job	Run time
unit_tests	3m 8s
unit_tests	3m 8s
unit_tests	3m 8s
build_odo	2m 1s
build_odo	2m 1s
build_odo	2m 1s
validate	5m 17s
validate	5m 17s
validate	5m 17s
Podman Tests	18m 7s
Podman Tests	17m 6s
Podman Tests	18m 26s
No-Cluster Tests	1m 48s
No-Cluster Tests	1m 48s
No-Cluster Tests	1m 48s
K8s Tests (v1.28.0/ServiceBinding=false)	1h 14m 59s
K8s Tests (v1.28.0/ServiceBinding=false)	1h 14m 59s
K8s Tests (v1.28.0/ServiceBinding=false)	1h 14m 59s
OpenShift Tests	0s
OpenShift Tests	0s
OpenShift Tests	0s
K8s Tests (v1.28.0/ServiceBinding=true)	16m 20s
K8s Tests (v1.28.0/ServiceBinding=true)	16m 20s
K8s Tests (v1.28.0/ServiceBinding=true)	16m 20s
K8s Tests (v1.27.3/ServiceBinding=false)	1h 14m 29s
K8s Tests (v1.27.3/ServiceBinding=false)	1h 14m 29s
K8s Tests (v1.27.3/ServiceBinding=false)	1h 14m 29s
K8s Tests (v1.27.3/ServiceBinding=true)	17m 41s
K8s Tests (v1.27.3/ServiceBinding=true)	17m 41s
K8s Tests (v1.27.3/ServiceBinding=true)	17m 41s
K8s Tests (v1.26.6/ServiceBinding=false)	1h 15m 12s
K8s Tests (v1.26.6/ServiceBinding=false)	1h 15m 12s
K8s Tests (v1.26.6/ServiceBinding=false)	1h 15m 12s
K8s Tests (v1.26.6/ServiceBinding=true)	22m 21s
K8s Tests (v1.26.6/ServiceBinding=true)	22m 21s
K8s Tests (v1.26.6/ServiceBinding=true)	22m 21s
	15h 33m 27s

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