ci: update tests

Author: Aetherinox

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [10.x, 12.x, 14.x, 16.x, 17.x]
+        node-version: [10.x, 12.x, 14.x, 16.x, 17.x, 18.x, 20.x]
 
     steps:
       - uses: actions/checkout@v2