Merge pull request #1517 from nationalarchives/renovate/actions-setup-node-4.0.x

chore(deps): update actions/setup-node action to v4.0.3

Author: renovate[bot]

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up node
-        uses: actions/[email protected].2
+        uses: actions/[email protected].3
 
       - name: Install node dependencies
         run: npm ci