ci: use Node.js v20 for release workflow

Author: dsanders11

.github/workflows/ci.yml

@@ -85,8 +85,11 @@ jobs:
       contents: write
     steps:
       - name: Checkout
-        id: checkout
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      - name: Setup Node.js
+        uses: actions/setup-node@b39b52d1213e96004bfcb1c61a8a6fa8ab84f3e8 # v4.0.1
+        with:
+          node-version: 20
       - run: npx semantic-release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}