Allow anonymous user in devcontainer name.

[bdice]

Description

In https://github.com/rapidsai/cudf/pull/15572, we updated the devcontainer name to include the current user's name. However, in GitHub Codespaces, the username is not defined. As a result, the container name starts with a dash. This is not allowed by GitHub Codespaces, so it fails to launch.

This PR adds a default value of anon to the devcontainer username.

Checklist

• [x] I am familiar with the Contributing Guidelines.
• [x] New or existing tests cover these changes.
• [x] The documentation is up to date with these changes.

[vyasr]

Can we rapids-reviser this (or at least create an issue)? I assume it affects all RAPIDS repos.

[bdice]

Can we rapids-reviser this (or at least create an issue)? I assume it affects all RAPIDS repos.

I applied this fix across repos. The new PRs link to this one.

• https://github.com/rapidsai/cugraph-ops/pull/654
• https://github.com/rapidsai/cuspatial/pull/1396
• https://github.com/rapidsai/raft/pull/2355
• https://github.com/rapidsai/rmm/pull/1576

[bdice]

/merge

[vyasr]

Can we rapids-reviser this (or at least create an issue)? I assume it affects all RAPIDS repos.

I applied this fix across repos. The new PRs link to this one.

* [Allow anonymous user in devcontainer name cugraph-ops#654](https://github.com/rapidsai/cugraph-ops/pull/654)

* [Allow anonymous user in devcontainer name cuspatial#1396](https://github.com/rapidsai/cuspatial/pull/1396)

* [Allow anonymous user in devcontainer name raft#2355](https://github.com/rapidsai/raft/pull/2355)

* [Allow anonymous user in devcontainer name rmm#1576](https://github.com/rapidsai/rmm/pull/1576)

Thanks!