Update Statamic 6

[k-aleksandar]

A possible version of the Statamic 6 update for this addon, we use it in out projects, I hope we can help keeping it up to date.

[SG-fabian]

Thanks for the pull request! How to fix it for now:

"repositories": [
  {
    "type": "vcs",
    "url": "https://github.com/k-aleksandar/statamic-export"
  }
]

"require": {
  "doefom/statamic-export": "dev-update-statamic-6",
}

[k-aleksandar]

Hey, you need to Merge pull request to main branch.

[doefom]

@k-aleksandar sorry it took so long! Thanks for the PR 🙏