Spwcify versions to sphinx

.github/workflows/build_docs.yml

@@ -24,6 +24,6 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -r requirements.txt
-          pip install sphinx sphinx-autodoc-typehints torch==2.5.* torchvision tensorflow==2.15.*
+          pip install sphinx==5.0.2 sphinx-autodoc-typehints==1.18.3 torch==2.5.* torchvision tensorflow==2.15.*
       - name: Build docs
         run: cd docsrc && make github SPHINXOPTS="-W --keep-going"