ci: support node 20

Author: sibiraj-s

.github/workflows/tests.yml

@@ -8,10 +8,10 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [8, 10, 12, 14, 16, 18]
+        node-version: [8, 10, 12, 14, 16, 18, 20]
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v3
         with: