Update actions versions

.github/workflows/update_contributors.yml

@@ -10,12 +10,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Install Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
-          node-version: "14"
+          node-version: "20"
 
       - name: Install dependencies
         run: npm install axios