docs: Update the test command in developing.md

docs/developing.md

@@ -14,11 +14,5 @@ poetry install
 You can run tests with the following command:
 
 ```bash
-poetry run pytest
-```
-
-Run tests including pylint and the Black code formatter like the CI workflow of the repo. Useful before PRs:
-
-```bash
-poetry run pytest -vvv  --black --pylint --pylint-rcfile=pyproject.toml --cov=yls --cov-report=term-missing -l ./yls ./tests
+poetry run poe test
 ```