[INFRA]: Update cccl.c devcontainers to 26.06
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Description
### Is this a duplicate?
- [x] I confirmed there appear to be no [duplicate issues](https://github.com/NVIDIA/cccl/issues) for this request and that I agree to the [Code of Conduct](CODE_OF_CONDUCT.md)
### Overview
We've already moved all other devcontainers to 26.06 in #8225, but there the `rapidsai/ci-wheel:26.04-cuda12.9.1-rockylinux8-py3.10` devcontainer that cccl.c uses has no successor and was removed.
### Details
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