chore(v2): e2e test multiple upgrades #4650

Job	Run time
Git SHA	4s
Dryrun tests	51s
Check operator CRDs	28s
Build buildtools	36s
Integration tests (kind)	2m 17s
Sanitize	3m 53s
Unit tests	2m 26s
Build previous k0s	9m 57s
Build legacy DR	9m 33s
Build upgrade	10m 7s
Build current	10m 4s
Export version specifier	3s
Determine previous stable version	5s
Integration tests	1s
Check images	22s
Create app releases	35s
E2E docker (TestSingleNodeInstallation)	10m 33s
E2E (on merge)	0s
E2E (TestVersion)	4m 0s
E2E docker (TestSingleNodeUpgradePreviousStable)	11m 59s
E2E docker (TestUpgradeEC18FromReplicatedApp)	13m 45s
E2E (TestCommandsRequireSudo)	3m 51s
E2E (TestResetAndReinstallAirgap)	19m 13s
E2E (TestMultiNodeAirgapUpgradePreviousStable, embedded-cluster-2)	19m 13s
E2E (TestAirgapUpgradeFromEC18, embedded-cluster-2)	19m 13s
Validate success	1s
	2h 33m 10s

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