actions: fix docs action

Author: sophec

.github/workflows/release-docs.yml

@@ -31,7 +31,7 @@ jobs:
         run: |
           python -m venv .venv
           . .venv/bin/activate
-          python -m pip install -r docs/doc-requirements.txt
+          python -m pip install -r docs/docs-requirements.txt
 
       - name: Run Sphinx
         run: |