[repo] Create Pre-release workflow or find point where release verification should happen

## Description

Client is the core library for many connectors. If we release a breaking change unnoticed it may require more effort to fix late. Today we have a release workflow that publishes to Maven. But we should not block this by tests.

What should be done:
- Evaluate idea of creating pre-release wf that can be used to trigger verification tests.
- Find out what to do with long running test WF's in other repos. How they would deliver result to java client maintainers.
- Research what can be done for community users to have similar signal for tests.