Switch to ruff, fix issues

.github/workflows/ci.yml

.gitlab-ci.yml

benchmarks/bench_translations.py

examples/expansion-toys.py

pyproject.toml

setup.py

sumpy/assignment_collection.py

sumpy/codegen.py

sumpy/cse.py

sumpy/expansion/__init__.py

sumpy/kernel.py

sumpy/p2p.py

sumpy/qbx.py

sumpy/tools.py

test/test_misc.py