Ci
* ci: update checkout action ([`be8b7b6`](https://github.com/ADR-007/pydantic-strict-partial/commit/be8b7b68effd5007bf12cde86c5366055707603c))
Documentation
* docs: add optional fields specification to README.md ([`31655af`](https://github.com/ADR-007/pydantic-strict-partial/commit/31655afa4fe6df74c9395cca780c5824d733e0a7))
Feature
* feat: accept optional_fields as stared positional arguments ([`8423f4f`](https://github.com/ADR-007/pydantic-strict-partial/commit/8423f4fd4ccc5b110d0037276f2046106bff73b7))