Update actions/setup-node action to v7 (#11012)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/tests.yml

@@ -47,7 +47,7 @@ jobs:
           pio upgrade
 
       - name: Setup Node
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v7
         with:
           node-version: 24