Infrastructure: Update Node version used by GHA

Author: TheBizzle

.github/workflows/main.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Set up Node
         uses: actions/setup-node@v3
         with:
-          node-version: '14'
+          node-version: '20'
 
       - name: Install dependencies
         run: npm install