chore(deps): update actions/setup-node action to v6

Author: renovate[bot]

.github/workflows/commit-checks.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Use Node 20.x
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: '20.x'
       - run: npm ci