chore(deps): update actions/upload-artifact action to v4 #733

Job	Run time
Run Tests / Integration tests (microk8s) (katib-controller)	24m 40s
Publish Charm / Generate the Charm Matrix	4s
Run Tests / Integration tests (microk8s) (katib-db-manager)	23m 27s
Run Tests / Lint	11s
Run Tests / Test the bundle	1h 3m 51s
Run Tests / Unit tests (katib-controller)	21s
Run Tests / Unit tests (katib-db-manager)	19s
Run Tests / Check libraries (katib-controller) / Check libraries	28s
Run Tests / Check libraries (katib-controller) / Lint	9s
Run Tests / Check libraries (katib-db-manager) / Check libraries	31s
Run Tests / Check libraries (katib-db-manager) / Lint	10s
Run Tests / Check libraries (katib-ui) / Check libraries	27s
Run Tests / Check libraries (katib-ui) / Lint	11s
Run Tests / Terraform (katib-controller) / Apply / Apply Terraform	5m 30s
Run Tests / Terraform (katib-controller) / Check / Check Terraform	11s
Run Tests / Terraform (katib-controller) / Lint / Lint Terraform	9s
Run Tests / Terraform (katib-db-manager) / Apply / Apply Terraform	4m 46s
Run Tests / Terraform (katib-db-manager) / Check / Check Terraform	9s
Run Tests / Terraform (katib-db-manager) / Lint / Lint Terraform	7s
Run Tests / Terraform (katib-ui) / Apply / Apply Terraform	5m 12s
Run Tests / Terraform (katib-ui) / Check / Check Terraform	9s
Run Tests / Terraform (katib-ui) / Lint / Lint Terraform	6s
Publish Charm / Publish Charm (./charms/katib-ui)	20m 18s
Publish Charm / Publish Charm (./charms/katib-controller)	13m 46s
Publish Charm / Publish Charm (./charms/katib-db-manager)	13m 36s
	2h 58m 48s

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