chore(deps): update actions/setup-node action to v5

Author: renovate[bot]

.github/workflows/validate-config.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
           node-version: 20.x
       - uses: actions/cache@v4