ci: try to pass the pyarrow nightly wheel as additional arg to the doc builder workflow

Author: kszucs

.github/workflows/build_documentation.yml

@@ -15,6 +15,7 @@ jobs:
       commit_sha: ${{ github.sha }}
       package: datasets
       notebook_folder: datasets_doc
+      additional_args: --extra-index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
     secrets:
       token: ${{ secrets.HUGGINGFACE_PUSH }}
       hf_token: ${{ secrets.HF_DOC_BUILD_PUSH }}