Update CI config

.github/workflows/docsite.yml

@@ -16,15 +16,15 @@ jobs:
   update-docs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - run: |
           git fetch --no-tags --prune --depth=1 origin +refs/heads/*:refs/remotes/origin/*
       - name: Set up Ruby
-        uses: actions/setup-ruby@v1
+        uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "2.7.x"
+          ruby-version: "3.0.5"
       - name: Set up git user
         run: |
           git config --local user.email "[email protected]"