doc: Force docs to use latest torillic theme

.github/workflows/build.yml

@@ -44,7 +44,7 @@ jobs:
       - name: Dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install mkdocs mkdocs-torillic
+          pip install mkdocs mkdocs-torillic>=2.2.0
       - name: Build
         run: |
           cd docs