Update permissions for MkDocs deployment

Added permissions for GitHub Actions to allow writing to pages.

Author: qwertygc

.github/workflows/main.yml

@@ -13,7 +13,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Deploy MkDocs
-        uses: mhausenblas/mkdocs-deploy-gh-pages@master
+        permissions:
+          contents: read
+          pages: write         
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}