Use dcgm v4 on HWO (#466) #242

Job	Run time
check / Lint (3.10)	39s
check / Lint (3.12)	39s
check / Unit (3.10)	1m 34s
check / Lint (3.8)	34s
check / Unit (3.8)	1m 32s
check / Unit (3.12)	1m 30s
check / build charms (self-hosted, linux, s390x)	17m 49s
check / build charms (self-hosted, ppc64el)	25m 56s
check / build charms (ubuntu-24.04)	17m 56s
check / build charms (ubuntu-24.04-arm)	17m 41s
check / functional tests (ubuntu-24.04, tox -e func -- -v --base [email protected] --keep-models, 3.6/stable)	10m 19s
check / functional tests (ubuntu-24.04, tox -e func -- -v --base [email protected] --keep-models, 3.6/stable)	9m 33s
check / functional tests (ubuntu-24.04-arm, tox -e func -- -v --base [email protected] --keep-models, 3.6/stable)	10m 3s
check / functional tests (ubuntu-24.04-arm, tox -e func -- -v --base [email protected] --keep-models, 3.6/stable)	9m 53s
check / functional tests (ubuntu-24.04, tox -e func -- -v --base [email protected] --keep-models, 3.6/stable)	11m 11s
check / functional tests (ubuntu-24.04-arm, tox -e func -- -v --base [email protected] --keep-models, 3.6/stable)	10m 31s
check / tics-analysis	5m 58s
release	2m 20s
notify-on-release-failure	0s
	2h 35m 38s

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