Adding Grafana Labs Dev Container Features to the public index

[szkiba]

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

Adding Grafana Labs Dev Container Features to the public index (k6, xk6)

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]

Thanks for the PR!
Change approved. This can be merged.

[ddoyle2017]

Thanks for the contribution! ⚡

[szkiba]

Hi @ddoyle2017 ,

Can you help me merge this PR? Do I need to do anything to get the PR merged?

[ddoyle2017]

Hi @ddoyle2017 ,

Can you help me merge this PR? Do I need to do anything to get the PR merged?

@szkiba Changes approved! I can help merge this in after the conflicts are addressed

[szkiba]

Hi @ddoyle2017, I accidentally closed the PR (during upstream sync).
I opened a new one with the same content:
#545
Can you help me merge this please.