Update actions/setup-node action to v4

Update actions/setup-node from 2 to 4

Change-type: patch

Author: balena-renovate[bot]

.github/workflows/publish-docs.yml

@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2
 
       - name: Setup node
-        uses: actions/setup-node@7c12f8017d5436eb855f1ed4399f037a36fbd9e8 # v2
+        uses: actions/setup-node@60edb5dd545a775178f52524783378180af0d1f8 # v4
         with:
           node-version: "14"