Add FUNDING.yml

[open-collective-bot]

Looks like you don't have a FUNDING.yml in your repository.

This file is required by GitHub to display the "Sponsor" button on your repository page.

You can review and merge this PR to add the FUNDING.yml to your repository.

You will also need to activate "Sponsorships" for your repository, see GitHub documentation: https://help.github.com/en/articles/displaying-a-sponsor-button-in-your-repository

[dnfadmin]

Thank you for your submission, we really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.

❌ open-collective-bot[bot] sign now
_{You have signed the CLA already but the status is still pending? Let us recheck it.}