Add defaultValue to secrets

[agardnerIT]

May I suggest adding a defaultValue to secrets.

Usecase

My users fork my repo and create a codespace from it. I suggest secrets. One of which will have a value of live for 95% of my users. So to make life easy, I just want to prefill the input box with live.

[samruddhikhandale]

Hi 👋

Are you referring to Codespaces secrets (user/repo)? If so, can you open an issue in https://github.com/orgs/community/discussions/categories/codespaces instead?

[agardnerIT]

Hi. The spec doesn't yet support a field so that's the ask here, to consider adding it to the spec - which GitHub can then ultimately consume.

spec/schemas/devContainer.base.schema.json

Line 53 in 87e7ce0

"secrets": {