chore: update node version in ci

Author: pi0

.github/workflows/autofix.yml

@@ -16,7 +16,7 @@ jobs:
       - run: corepack enable
       - uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 20
           cache: "pnpm"
       - run: pnpm install
       - name: Fix lint issues