fix: permission

.github/workflows/docs.yml

@@ -4,13 +4,16 @@ on:
     branches:
       - main
 
+permissions:
+  contents: write
+
 jobs:
   build:
     name: Deploy docs
     runs-on: ubuntu-latest
     steps:
       - name: Checkout main
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Deploy docs
         uses: mhausenblas/mkdocs-deploy-gh-pages@master