Update node version in release script

Author: mnapoli

.github/workflows/release.yml

@@ -12,7 +12,7 @@ jobs:
             - uses: actions/checkout@v2
             - uses: actions/setup-node@v2
               with:
-                  node-version: "15"
+                  node-version: "16"
                   registry-url: https://registry.npmjs.org
             - uses: actions/cache@v2
               with: