test: #76 Automate Preview Deployment and Comment Deployment URL on PRs

[sid86-dev]

To make this action work, add the required values from Vercel as secrets in GitHub:

• Retrieve your Vercel Access Token
• Install the Vercel CLI and run vercel login
• Inside your folder, run vercel link to create a new Vercel project
• Inside the generated .vercel folder, save the projectId and orgId from the project.json
• Inside GitHub, add VERCEL_TOKEN, VERCEL_ORG_ID, and VERCEL_PROJECT_ID as secrets

[sid86-dev]

Please lemme know about the setup you're planning.

The workflow is:

1. New PR opens
2. Build and deploy a preview of the changes
3. PR is Merged
4. Build and deploy to the production

[sid86-dev]

For the action to work, in the GitHub repository, go to "Settings" > "Secrets" > "New repository secret", and add the environment secret as mentioned.