Build failure due to tests failing with python 3.12

Job #6144378708 failed for dc905f36:

===== 3 failed, 335 passed, 5 skipped, 4 deselected, 670 warnings in 4.18s =====
E: pybuild pybuild:391: test: plugin pyproject failed with: exit code=1: cd /builds/kalilinux/packages/pypsrp/debian/output/source_dir/.pybuild/cpython3_3.12_pypsrp/build; python3.12 -m pytest -k 'not test_build_session_proxies_default and not test_build_session_proxies_env'