feat: add Dev Container assets by Yassine Doghri to collection index

[yassinedoghri]

What type of PR is this?

• Add a new dev container collection
• Update to an existing dev container collection
• Documentation/spec update
• Other containers.dev site update (UX, layout, etc)

Description

Please replace this line with a description of your PR.

Collection checklist

If your PR contributes a new collection, please utilize this checklist:

• Collection name
• Maintainer name
• Maintainer contact link (i.e. link to a GitHub repo, email)
• Repository URL
• OCI Reference
• I acknowledge that this collection provides new functionality, distinct from the existing collections part of this index.

[Kaniska244]

Hi @yassinedoghri

Apologies for the delay. Would you kindly resolve the conflict.

[AlvaroRausell]

Hi! Your OCI reference is leading to a 404. Can you make sure the collection is set up correctly? Thanks!

[yassinedoghri]

Fixed the issues, thank you for the review!