chore(v2): e2e test multiple upgrades #4620

Job	Run time
Git SHA	5s
Sanitize	3m 45s
Check operator CRDs	28s
Build buildtools	51s
Dryrun tests	42s
Integration tests (kind)	2m 41s
Unit tests	1m 51s
Build legacy DR	9m 36s
Build upgrade	9m 50s
Build current	10m 13s
Build upgrade 2	9m 43s
Build previous k0s	9m 37s
Export version specifier	4s
Determine previous stable version	5s
Integration tests	1s
Check images	26s
Create app releases	41s
E2E (TestVersion)	4m 22s
E2E (TestCommandsRequireSudo)	4m 11s
E2E docker (TestSingleNodeInstallation)	8m 20s
E2E (TestResetAndReinstallAirgap)	27m 0s
E2E (on merge)	0s
E2E docker (TestSingleNodeUpgradePreviousStable)	13m 36s
E2E (TestMultiNodeAirgapUpgradePreviousStable, embedded-cluster-2)	24m 57s
E2E docker (TestUpgradeEC18FromReplicatedApp)	18m 54s
E2E (TestAirgapUpgradeFromEC18, embedded-cluster-2)	28m 1s
Validate success	1s
	3h 10m 1s

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