chore: update node to v20.16.0

Author: gmsgowtham

.github/workflows/perf.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: 18.15.0
+          node-version: 20.16.0
           cache: "yarn"
       - name: Run performance tests
         run: ./reassure-tests.sh