Chore: add node v16 (#14355)

Author: aladdin-add

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        node: [15.x, 14.x, 13.x, 12.x, 10.x, "10.12.0"]
+        node: [16.x, 15.x, 14.x, 13.x, 12.x, 10.x, "10.12.0"]
         include:
         - os: windows-latest
           node: "12.x"