feat(preflights): add support for TCP connection checks on the hpc template #3519

Job	Run time
Dryrun tests	2m 50s
Build buildtools	29s
Git SHA	2s
Check operator CRDs	30s
Integration tests	2m 14s
Sanitize	1m 47s
Unit tests	1m 39s
Build current	3m 35s
Export version specifier	3s
Build previous k0s	3m 49s
Build upgrade	3m 37s
Determine previous stable version	3s
Check images	0s
Create app releases	0s
E2E	0s
E2E docker	0s
Validate success	1s
	20m 39s

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