Revise Cloudflare Workers deployment guide

[The-LukeZ]

Updated instructions for setting up Cloudflare Workers deployment with GitHub Actions, including token management and workflow configuration.

The old workflow example was very likely going to fail because of missing nodejs and package manager setup - also if you didn't set your account_id in the wrangler.jsonc/toml.

[yusukebe]

Hi @The-LukeZ

Have you tried the current instruction? It works great for me. The repro: https://github.com/yusukebe/my-workers-github-actions-app

One thing we have to do is install Wrangler v4, since cloudflare/wrangler-action uses Wrangler v3.

name: Deploy

on:
  push:
    branches:
      - main

jobs:
  deploy:
    runs-on: ubuntu-latest
    name: Deploy
    steps:
      - uses: actions/checkout@v4
      - name: Install Wrangler v4 # <=== add
        run: npm install --save-dev wrangler@4 # <=== add
      - name: Deploy
        uses: cloudflare/wrangler-action@v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}

[The-LukeZ]

Yep, I did that. See yourself: https://github.com/The-LukeZ/upvote-engine

I don't know if you can see the action tab but the first workflow run used the exact example of the workflow.

[The-LukeZ]

actually, my bad then - I copied the workflow and it was still v3 I think. I will try tomorrow if it works with just the wrangler v4.

[yusukebe]

I think that the change of this PR is not necessary. Just using Wranlger v4 works.

[The-LukeZ]

tbh I tried it and it didn't work.

What should I do exactly?

[yusukebe]

@The-LukeZ

I think only the change in #778 is needed. We can use #778 instead of this PR.

[The-LukeZ]

ah okay, thx 👍🏻