[FEA]: Factor out devcontainer version to the matrix.yaml

[jrhemstad]

Is this a duplicate?

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Area

Infrastructure

Is your feature request related to a problem? Please describe.

As a maintainer of CCCL's actions workflows and devcontainers, I want to be able to easily update the version of the base images we're using from https://github.com/rapidsai/devcontainers.

Today, that version is hardcoded to 23.06 in a few different places:

• cccl/.github/workflows/dispatch-build-and-test.yml

  Line 31 in b3bf3c2

  build_image: rapidsai/devcontainers:23.06-cpp-${{matrix.compiler.name}}${{matrix.compiler.version}}-cuda${{matrix.cuda}}-${{matrix.os}}

• cccl/.devcontainer/make_devcontainers.sh

  Line 17 in b3bf3c2

  IMAGE_ROOT="rapidsai/devcontainers:23.06-cpp-"

This makes it difficult to consistently update this version.

Describe the solution you'd like

There should be a single source of truth for the devcontainer image version. I think this should be defined in the matrix.yaml as a new top-level field like:

devcontainer_version: '23.06'

Then all other uses should derive from this single source of truth.

Describe alternatives you've considered

No response

Additional context

No response

[jrhemstad]

Closed by #270