New upstream version 0.14.2

.github/workflows/cis.yml

.pre-commit-config.yaml

doc/changelog.rst

doc/conf.py

src/bytecode/__init__.py

src/bytecode/cfg.py

src/bytecode/concrete.py

src/bytecode/flags.py

src/bytecode/instr.py

tests/cell_free_vars_cases.py

tests/exception_handling_cases.py

tests/test_cfg.py

tests/test_concrete.py

tests/test_flags.py

tests/test_instr.py

tox.ini