chore: update dependency node to v16.20.2

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.travis.yml

@@ -12,7 +12,7 @@ node_js:
   - 10.24.1
   - 12.22.12
   - 14.21.3
-  - 16
+  - 16.20.2
   - 17
 install: npm ci --ignore-scripts
 script: npm run-script test:ci