Update actions/setup-node action to v6.1.0

Update actions/setup-node from 6.0.0 to 6.1.0

Change-type: patch

Author: balena-renovate[bot]

.github/workflows/flowzone.yml

@@ -582,7 +582,7 @@
 
   - &setupNode # https://github.com/actions/setup-node
     name: Setup Node.js
-    uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
+    uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
     env:
       # renovate: datasource=node-version depName=node packageName=node-24.x
       NODE_VERSION: 24.11.1