Fix docs CI workflow

.github/workflows/docs.yml

@@ -4,8 +4,12 @@ on:
   push:
     branches: [master]
 
+permissions:
+  contents: write
+
 jobs:
-  build:
+  build-and-deploy:
+    concurrency: ci-${{ github.ref }}
     runs-on: ubuntu-latest
     steps:
       - name: Inject slug/short variables
@@ -16,8 +20,6 @@ jobs:
 
       - name: Download source
         uses: actions/checkout@v3
-        with:
-          persist-credentials: false
 
       - name: Install dependencies
         run: shards install
@@ -27,22 +29,6 @@ jobs:
           sed -i -e 's:<.*>::g' README.md
           crystal docs --project-version="${{ env.GITHUB_REF_SLUG }}" --source-refname="${{ env.GITHUB_SHA_SHORT }}"
 
-      - name: Upload artifacts
-        uses: actions/upload-artifact@v3
-        with:
-          name: docs
-          path: docs
-
-  deploy:
-    needs: build
-    runs-on: ubuntu-latest
-    steps:
-      - name: Download artifacts
-        uses: actions/download-artifact@v3
-        with:
-          name: docs
-          path: docs
-
       - name: Deploy docs 🚀
         uses: JamesIves/github-pages-deploy-action@v4
         with: