chore(v2): e2e test multiple upgrades #4612

Job	Run time
Unit tests	2m 0s
Git SHA	3s
Integration tests (kind)	2m 32s
Sanitize	3m 58s
Build buildtools	40s
Check operator CRDs	28s
Dryrun tests	51s
Build current	14m 27s
Build previous k0s	14m 55s
Build upgrade	14m 53s
Build legacy DR	14m 41s
Build upgrade 2	14m 54s
Export version specifier	5s
Determine previous stable version	5s
Integration tests	1s
Check images	23s
Create app releases	41s
E2E docker (TestSingleNodeInstallation)	7m 0s
E2E (TestVersion)	5m 52s
E2E (on merge)	0s
E2E docker (TestSingleNodeUpgradePreviousStable)	6m 21s
E2E (TestCommandsRequireSudo)	3m 52s
E2E docker (TestUpgradeEC18FromReplicatedApp)	10m 31s
E2E (TestResetAndReinstallAirgap)	13m 55s
E2E (TestMultiNodeAirgapUpgradePreviousStable, embedded-cluster-2)	13m 56s
E2E (TestAirgapUpgradeFromEC18, embedded-cluster-2)	13m 57s
Validate success	1s
	2h 41m 2s

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