8.3.20221016151607

What's Changed

• pycodegen: safe identifiers don't have periods nor start with digits by @mr-c in #606

• install the isolated_cache fixture as part of the package by @mr-c in #610

• Bump mypy from 0.971 to 0.982 by @dependabot in #603 #605

• more Python 3.11 testing by @mr-c in #604

Full Changelog: 8.3.20220916115321...8.3.20221016151607