docs: Migrate from npm to yarn

.github/workflows/_release_docs.yaml

@@ -38,13 +38,13 @@ jobs:
         uses: actions/setup-node@v6
         with:
           node-version: ${{ env.NODE_VERSION }}
-          cache: npm
-          cache-dependency-path: website/package-lock.json
+          cache: yarn
+          cache-dependency-path: website/yarn.lock
 
       - name: Install Node dependencies
         run: |
-          npm install
-          npm update @apify/docs-theme
+          yarn install
+          yarn upgrade @apify/docs-theme
         working-directory: ./website
 
       # We do this as early as possible to prevent conflicts if someone else would push something in the meantime
@@ -53,7 +53,7 @@ jobs:
           git config user.name 'GitHub Actions'
           git config user.email 'github-actions[bot]@users.noreply.github.com'
           git add website/package.json
-          git add website/package-lock.json
+          git add website/yarn.lock
           git diff-index --quiet HEAD || git commit -m 'chore: Automatic docs theme update [skip ci]' || true
           git push
 

Makefile

@@ -65,7 +65,7 @@ build-api-reference:
 	cd website && uv run ./build_api_reference.sh
 
 build-docs:
-	cd website && uv run npm clean-install && uv run npm run build
+	cd website && corepack enable && yarn && uv run yarn build
 
 run-docs: build-api-reference
-	cd website && uv run npm clean-install && uv run npm run start
+	cd website && corepack enable && yarn && uv run yarn start

website/.yarnrc.yml

@@ -0,0 +1,2 @@
+nodeLinker: node-modules
+enableGlobalCache: true