chore: Release 0.4.5

fix: Linting, documentation, JSR, CI, etc. (#81)

fix: make sure PyCFunction_NewEx arguments live long enough (#60)

feat: add void to PythonConverible (#57)

feat: python 3.12 support! (#50)

feat: add bun support (#47)

feat: tasks and ci (#45)

feat(ext/pip): pip install and import (#43)

feat!: better python errors (#42)

fix: deref garbage collected owned refs (#41)