update node version

Author: mehm8128

.github/workflows/main.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
-          node-version: "14.x"
+          node-version: "16.x"
       - uses: actions/setup-go@v1
         with:
           go-version: 1.18