Update config and excludeReposByName to support micromatch patterns for more flexible repo exclusion #69

Wondering what your thoughts would be for a PR that would allow users to exclude repos for a given micromatch pattern? My use case is that I'm part of a GitLab group with dozens of subgroups and 400+ projects. It's easier for me to exclude the projects I don't want than to specifically include the groups I do want. I've been running the project locally with the changes and it fits my use case well. Example:

{
  "$schema": "./schemas/v2/index.json",
  "repos": [
    {
      "type": "gitlab",
      "token": "{{token}}",
      "users": [
        "{{user}}"
      ],
      "groups": [
        "fake-group"
      ],
      "exclude": {
        "projects": [
          "fake-group/devops/**",
          "fake-group/lambdas/**",
          "fake-group/architecture/**"
        ]
      }
    }
  ]
}