fix: remove node 14 in ci

Author: nshen

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        node_version: ['14', '16']
+        node_version: ['16']
         include:
           - os: macos-latest
             node_version: 16