Merge pull request #1190 from PrivateBin/node20

Use Node20 for tests

.github/workflows/tests.yml

@@ -104,7 +104,7 @@ jobs:
     - name: Setup Node
       uses: actions/setup-node@v4
       with:
-        node-version: '16'
+        node-version: '20'
         cache: 'npm'
         cache-dependency-path: 'js/package-lock.json'