chore: (actions) update to node16 (#159)

.github/workflows/gh-deploy.yml

@@ -18,12 +18,12 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           # this fetches all branches. Needed because we need gh-pages branch for deploy to work
           fetch-depth: 0
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: '3.9'
       - name: Install dependencies