[MPOps][Doc] Update all the model tutorials using the new API

## 🔨Work Item

**IMPORTANT:**
* This template is only for dev team to track project progress. For feature request or bug report, please use the corresponding issue templates.
* DO NOT create a new work item if the purpose is to fix an existing issue or feature request. We will directly use the issue in the project tracker.

Project tracker: https://github.com/orgs/dmlc/projects/2

## Description

Everything under https://docs.dgl.ai/tutorials/models/index.html

**All the changed docs need to have a reference to the doc in the old API style and vice versa.**

## Depending work items or issues