fix for CI fix

Author: codemasher

.github/workflows/ci.yml

@@ -145,10 +145,7 @@ jobs:
           coverage: none
 
       - name: "Install Sphinx"
-        run: |
-          sudo apt-get update
-          sudo apt-get install pipx
-          pipx install sphinx myst-parser sphinx-rtd-theme
+        run: pipx install --include-deps sphinx myst-parser sphinx-rtd-theme
 
       - name: "Install dependencies with composer"
         uses: ramsey/composer-install@v3