Run test docs build without insiders

.github/workflows/docs-publish.yml

@@ -48,9 +48,9 @@ jobs:
             mkdocs-material-
       - run: sudo apt-get install pngquant
       - run: pip install mike
-      - run: pip install git+https://${GH_TOKEN}@github.com/benphelps/mkdocs-material-insiders.git
+      - run: pip install mkdocs-material
       - name: Test Docs Build
-        run: MKINSIDERS=true mkdocs build
+        run: MKINSIDERS=false mkdocs build
   deploy:
     needs: changes
     name: Build & Deploy