Support for local push in Risco integration (#75874)

* Local config flow

* Local entities

* Apply suggestions from code review

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

* Address code review comments

* More type hints

* Apply suggestions from code review

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

* More annotations

* Even more annonations

* New entity naming

* Move fixtures to conftest

* Improve state tests for local

* Remove mutable default arguments

* Remove assertions for lack of state

* Add missing file

* Switch setup to fixtures

* Use error fixtures in test_config_flow

* Apply suggestions from code review

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>