Add my dev container features to index

[mrsimonemms]

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

Add entry for my devcontainer features. In particular, it adds the Temporal Cloud CLI to compliment other Temporal features already present

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]

Change looks fine. This can be approved.

[AlvaroRausell]

Hi! Can you fix the merge conflicts so this can be approved please?

[mrsimonemms]

@AlvaroRausell done