feat: add dependabot workflow file

[BryanttV]

Description

This workflow periodically checks the version of the GitHub Actions and updates it to the latest version.

How to test

This same workflow is already running on this library

References

This workflow was initially taken from this repository

[openedx-webhooks]

Thanks for the pull request, @BryanttV! Please note that it may take us up to several weeks or months to complete a review and merge your PR.

Feel free to add as much of the following information to the ticket as you can:

• supporting documentation
• Open edX discussion forum threads
• timeline information ("this must be merged by XX date", and why that is)
• partner information ("this is a course on edx.org")
• any other information that can help Product understand the context for the PR

All technical communication about the code itself will be done via the GitHub pull request interface. As a reminder, our process documentation is here.

Please let us know once your PR is ready for our review and all tests are green.

[BryanttV]

@felipemontoya

[felipemontoya]

@bmtcril I thought I had successfully added @BryanttV in the CLA agreement of edunext. This happened about 24 hours ago. Is there something else we need to do or just wait a bit more?

[bmtcril]

Hi @felipemontoya , it looks like this may be a case-sensitivity issue. What I'm seeing in the check is bryanttV not BryanttV

[felipemontoya]

I did not pay attention to that. Thanks for looking it up. I just updated the record

[BryanttV]

Hi @bmtcril, the PR is now ready for review

[openedx-webhooks]

@BryanttV 🎉 Your pull request was merged! Please take a moment to answer a two question survey so we can improve your experience in the future.