Package auditd-plugin-clickhouse: Information

- Improved the boundary condition, when to notify the writing thread.
- Fixed potentially uninitialized variable.

- Set SendRetries=5 by default.
- Reduce the min success sequence each time the batch is increased.
- Write to log about batch size and min success sequence changes.
- Reduce the batch only on the following server errors:
  CANNOT_ALLOCATE_MEMORY (173), MEMORY_LIMIT_EXCEEDED (241) and
  LIMIT_EXCEEDED (290).
- Display the error type and code. Don't reduce the batch size on
  other than server errors.
- Fix: If WriteCountLimitMin=0 use 1.

- Set SendRetries=100, RetryTimeout=5 by default.