refactor(chore): standardize node version to \>=20

To maintain consistency and leverage the latest features and security updates, we are standardizing
our Node.js support policy.

BREAKING CHANGE:
node version 18 is not supported

GH-147

Author: vaibhavbhalla2505

.github/workflows/release.yaml

@@ -17,7 +17,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v3
         with:
-          node-version: '18.x'
+          node-version: '20.x'
       - name: Configure CI Git User
         run: |
           git config --global user.name $CONFIG_USERNAME