docs: Remove --keep-going because it's deprecated (#24)

Author: bkeryan

.github/workflows/check_docs.yml

@@ -34,7 +34,7 @@ jobs:
       - name: Install nitypes (with docs)
         run: poetry install -v --only main,docs
       - name: Generate docs
-        run:  poetry run sphinx-build docs docs/_build -b html -W --keep-going
+        run:  poetry run sphinx-build docs docs/_build -b html -W
       - name: Upload docs artifact
         uses: actions/upload-artifact@v4
         with: