add circuit breaking

[vench]

Description

This pull request introduces circuit breaking functionality to Chproxy, enhancing its resilience and reliability when interacting with ClickHouse clusters. Circuit breaking is a critical feature for preventing cascading failures in distributed systems by halting operations when certain failure thresholds are reached

Please check the type of change your PR introduces:

• [ ] Bugfix
• [x] Feature
• [ ] Code style update (formatting, renaming)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] Documentation content changes
• [ ] Other (please describe):

Checklist

• [x] Linter passes correctly
• [x] Add tests which fail without the change (if possible)
• [x] All tests passing
• [x] Extended the README / documentation, if necessary