fix: resolve pabot issue with duplicated test runs and incomplete executions

[gibiw]

This pull request includes several changes to the qase-robotframework project aimed at fixing issues with Pabot and improving test execution handling. The most important changes include updating the version, modifying the Listener class to handle a new flag, and updating the changelog.

Version Update:

• qase-robotframework/pyproject.toml: Updated the project version from 3.2.2 to 3.2.3.

Changelog Update:

• qase-robotframework/changelog.md: Added an entry for version 3.2.3 detailing the fixed issues with Pabot and test execution.

Listener Class Modifications:

• qase-robotframework/src/qase/robotframework/listener.py:
  • Added a new method get_last_level_flag to retrieve the ${PABOTISLASTEXECUTIONINPOOL} variable.
  • Updated the __init__ method to initialize self.last_level_flag.
  • Modified the start_suite method to set self.last_level_flag using the new method.
  • Updated the close method to check self.last_level_flag instead of self.pabot_index for determining when to drop the run ID.