fix(ci): update node version matrix

Author: nkeor

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 16.x]
+        node-version: [14.21.3, 16.x, 18.x, 20.x]
 
     steps:
       - uses: actions/checkout@v2