Merge pull request #182 from Aiven-Open/aris-fix-sphinx-action

Fix failing Sphinx build due to inability to install dependencies

.github/workflows/sphinx.yml

@@ -34,7 +34,7 @@ jobs:
           cache: pip
 
       - name: "Install Sphinx & Theme"
-        run: pip install -e '.[docs]'
+        run: pip install -e './main[docs]'
 
       - name: "Run Sphinx"
         run: sphinx-build -b html main/docs gh-pages -E -d $GITHUB_WORKSPACE/.doctree