bump up node.js version used in CI jobs to version 20

Author: anton-107

.github/workflows/ci.yml

@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [16]
+        node: [20]
     name: Node ${{ matrix.node }} sample
     steps:
       - uses: actions/checkout@v3