ci: update node to 20

Author: frodrigo

.github/workflows/ci.yaml

@@ -42,7 +42,7 @@ jobs:
     - uses: actions/checkout@v4
     - uses: actions/setup-node@v4
       with:
-        node-version: '16'
+        node-version: '20'
     - name: Get npm cache directory
       id: npm-cache-dir
       run: |
@@ -66,7 +66,7 @@ jobs:
     - uses: actions/checkout@v4
     - uses: actions/setup-node@v4
       with:
-        node-version: '16'
+        node-version: '20'
     - name: Get npm cache directory
       id: npm-cache-dir
       run: |