fix verify-hardcoded-versions issues

[jameslamb]

Fixes these pre-commit errors

In file RAPIDS_BRANCH:1:9:
 release/26.04
warning: do not hard-code version, read from VERSION file instead

In file RAPIDS_BRANCH:1:9:
 release/26.04

verify-hardcoded-version-ucxx............................................Failed
- hook id: verify-hardcoded-version
- exit code: 1

In file UCXX_BRANCH:1:9:
 release/0.49
warning: do not hard-code version, read from UCXX_VERSION file instead

In file UCXX_BRANCH:1:9:
 release/0.49

See rapidsai/pre-commit-hooks#121 for details

[jameslamb]

Triggered a run of the nightly tests on release/26.04 manually, to get check-nightly-ci passing (early in a branch's life, it only needs to see ANY runs, not a successful one).

https://github.com/rapidsai/raft/actions/runs/23024548645

[jameslamb]

/merge