feat: prompt in the install command if newer app release version is available #3201

Job	Run time
Integration tests	1m 18s
Unit tests	1m 19s
Sanitize	1m 17s
Build buildtools	49s
Check operator CRDs	47s
Dryrun tests	1m 17s
Git SHA	5s
Build upgrade	1m 5s
Build current	46s
Build previous k0s	45s
Export version specifier	8s
Determine previous stable version	8s
Check images	1s
Create app releases	1s
E2E docker	1s
E2E	1s
Validate success	1s
	9m 49s

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