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

Author: renovate[bot]

.github/workflows/npm-audit.yml

@@ -17,7 +17,7 @@ jobs:
     if: github.repository == 'line/line-bot-mcp-server'
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
         with:
           node-version: '24'
           # Enable this when setup-node v5 is released