[FLINK-38875] Bump Java Operator SDK to version 5.2.2

[csviri]

Contribution Checklist

What is the purpose of the change

Bump Java Operator SDK to version 5.2.2

Verifying this change

This change is a trivial rework / code cleanup without any test coverage.

This change added tests and can be verified as follows:

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): yes
• The public API, i.e., is any changes to the CustomResourceDescriptors: no
• Core observer or reconciler logic that is regularly executed: no

Documentation

• Does this pull request introduce a new feature? no
• If yes, how is the feature documented? not applicable

[gyfora]

Please update the NOTICE file in the flink-kubernetes-operator module

[csviri]

Please update the NOTICE file in the flink-kubernetes-operator module

Updated, thx!!