Migrate now.sh endpoint to vercel.app

[jakubzitny]

now.sh domain and websites stopped working now, most of them seem to be automatically migrated to vercel.app.

Description

This is breaking builds in GitHub CI.

Motivation and Context

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• My code follows the code style of this project.
• If my change requires a change to the documentation I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I created an issue for the Pull Request

Closes #390