Hazelcast docker image versions in integration code samples are not updated

[hazelcast]

Hazelcast docker image versions in integration code samples are not updated

[leszko]

@kwart , yeah it would nice it we could automate it. However, I think we would need to write some tests for the code samples (which may not be that easy). In other words, now you have an old version, but you're sure it works correctly, which is not that bad. The worst we could do is to update the version, but not check if it still works.

I'm not sure the bug is the right label, I'd mark it rather as "Enhancement".

[kwart]

I understand and I also don't like if anything breaks with a new version, but the code samples are released for specific version so users will not expect they work with an outdated ones.

Missing tests to verify the code works as expected with new Hazelcast versions is a common problem of majority of the samples. We really should resolve it somehow - either include tests here in the repo or have a separate testsuite. (CC @Holmistr )