Change faker dependency Renovate schedule

[rclement]

faker dependency is updated too often and brings noise to Renovate auto updates.

@HaveF suggests to limit the update frequency using Renovate configuration.
For instance to update the package monthly on the first day of the month:

{
  "packageRules": [
    {
      "matchPackageNames": ["faker"],
      "schedule": ["before 4am on the first day of the month"]
    }
  ]
}

Discussed in #203

^{Originally posted by HaveF December 1, 2023}
#200 (comment)

the faker package changed too too frequent...do we need add some renovate config? (because I'm watching this repo, too many mail for this package)

https://docs.renovatebot.com/key-concepts/scheduling/#schedule-when-to-update-specific-dependencies