Bring-api

* Fix get_list method not returning uuid and status from JSON response
* Log to debug instead of error where exceptions are already raised.
* Add raw server response to debug log messages.
* Update docstrings

* **New API method:** `retrieve_new_access_token` retrieves a new access token and updates authorization headers. Time till expiration of the access token is stored in the property `expires_in` . ([tr4nt0r](https://github.com/tr4nt0r))
* All API methods that require authentication now raise `BringAuthException` for 401 Unauthorized status ([tr4nt0r](https://github.com/tr4nt0r))

* **Pytest unit testing:** added pytest with full code coverage ([tr4nt0r](https://github.com/tr4nt0r))
* **Github workflow for pytest:** added workflow for running pytests with Python 3.11 & 3.12 on Ubuntu, Windows and macOS ([tr4nt0r](https://github.com/tr4nt0r))
* Update Python requirement to >=3.11
* Change from implicit to explicit string conversion of `BringItemOperation` in JSON request payload ([tr4nt0r](https://github.com/tr4nt0r))
* Change Type of `BringItemOperation` to `StrEnum` ([tr4nt0r](https://github.com/tr4nt0r))
* `BringItem::operation` now also accepts string literals `TO_PURCHASE`, `TO_RECENTLY` & `REMOVE` ([tr4nt0r](https://github.com/tr4nt0r))
* fix wrong variable name in `BringSyncCurrentUserResponse` class and add additional variables from JSON response ([tr4nt0r](https://github.com/tr4nt0r))
* Improve exceptions for `save/update/remove/complete_item` and `batch_update_list` methods ([tr4nt0r](https://github.com/tr4nt0r))
* Fix bug in `get_all_item_details` method ([tr4nt0r](https://github.com/tr4nt0r))
* Parsing error when parsing unauthorized response now raises `BringParseException` ([tr4nt0r](https://github.com/tr4nt0r))
* Cleanup legacy code ([tr4nt0r](https://github.com/tr4nt0r))

* **map user language to locales**: Bring sometimes stores non-standard locales in the user settings. In case the Bring API returns an invalid/unsupported locale, the user language is now mapped to a supported locale.

* fix incorrect filtering of locales against supported locales list

* Fix KeyError when listArticleLanguage is not set.