Log Message:
py-pygls: updated to 0.12.1

0.12.1
Changed
- `Document` objects now expose a text document's `language_id`
- Various Pyodide improvements
- Improved tests for more reliable CI

0.12
Added
- Allow custom word matching for `Document.word_at_point`

Changed
- Upgraded Python support to 3.10, dropping support for 3.6
- Dependency updates, notably Pydantic 1.9 and Websockets 10