chore(deps): update actions/checkout action to v4 #38

Job	Run time
Get charm paths and charmhub channel	5s
Lint (jupyter-controller)	11s
Lint (jupyter-ui)	12s
Unit tests (jupyter-controller)	17s
Unit tests (jupyter-ui)	22s
Check libraries (charms/jupyter-controller/) / Check libraries	33s
Check libraries (charms/jupyter-controller/) / Lint	8s
Check libraries (charms/jupyter-ui/) / Check libraries	34s
Check libraries (charms/jupyter-ui/) / Lint	12s
Build charm \| charms/jupyter-controller/ / Collect platforms for charm \| charms/jupyter-controller/	21s
Build charm \| charms/jupyter-ui/ / Collect platforms for charm \| charms/jupyter-ui/	16s
Terraform (charms/jupyter-controller/) / Apply / Apply Terraform	5m 57s
Terraform (charms/jupyter-controller/) / Check / Check Terraform	10s
Terraform (charms/jupyter-controller/) / Lint / Lint Terraform	10s
Terraform (charms/jupyter-ui/) / Apply / Apply Terraform	5m 18s
Terraform (charms/jupyter-ui/) / Check / Check Terraform	9s
Terraform (charms/jupyter-ui/) / Lint / Lint Terraform	8s
Build charm \| charms/jupyter-ui/ / Build charm \| [email protected]:amd64	3m 24s
Build charm \| charms/jupyter-controller/ / Build charm \| [email protected]:amd64	3m 0s
Test the bundle	16m 37s
Integration tests (microk8s) (jupyter-controller)	10m 56s
Integration tests (microk8s) (jupyter-ui)	10m 8s
Release charm to Charmhub branch \| charms/jupyter-controller/ / Release charm	1m 6s
Release charm to Charmhub branch \| charms/jupyter-ui/ / Release charm	59s
	1h 1m 13s

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