build: update ng-renovate to use checkout-and-setup-node

This is needed to that the Node.js version in nvmrc is used.

Author: alan-agius4

.github/workflows/ng-renovate.yml

@@ -24,7 +24,11 @@ jobs:
           - angular/.github
     runs-on: ubuntu-latest
     steps:
+      # Because the checkout and setup node action is contained in the dev-infra repo, we must
+      # checkout the repo to be able to run the action we have created.  Other repos will skip
+      # this step.
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: ./github-actions/npm/checkout-and-setup-node
       - run: npm install --global pnpm@9.15.6
         shell: bash