fix: exclude deprecated options based on RF version

[reubenmiller]

Resolving deprecation notices (see #539) when using pabot with robotframework (RF) 6.1.

With RF 6.1 it includes more deprecation notices (even for some features that have been deprecated since RF 5.0).

Belows shows example of the deprecation notices as printed on the console prior to this PR.

ArgumentParser option 'auto_pythonpath' is deprecated since Robot Framework 5.0

tests/test_pabot.py: 56 warnings
  /home/runner/work/pabot/pabot/.tox/py/lib/python3.11/site-packages/robot/utils/argumentparser.py:80: UserWarning: ArgumentParser option 'auto_pythonpath' is deprecated since Robot Framework 5.0.
    warnings.warn("ArgumentParser option 'auto_pythonpath' is deprecated "

UserWarning: 'TestSuiteBuilder' argument 'included_suites' is deprecated and has no effect

tests/test_pabotsuitenames_io.py: 1 warning
  /home/runner/work/pabot/pabot/.tox/py/lib/python3.11/site-packages/robot/running/builder/builders.py:112: UserWarning: 'TestSuiteBuilder' argument 'included_suites' is deprecated and has no effect. Use the new 'included_files' argument or filter the created suite instead.
    warnings.warn("'TestSuiteBuilder' argument 'included_suites' is deprecated "

Notes

• ci: test against different robotframework versions #562 could be used to verify this PR as it would test pabot against multiple robotframework versions to verify the functionality across different versions.