get Java artifacts from GitHub Actions artifact store (#893)

Follow-up to #834

Contributes to rapidsai/build-infra#237

Uses GitHub Actions artifact store, instead of `downloads.rapids.ai`, to download `libcuvs` conda artifacts in CI.

Authors:
  - James Lamb (https://github.com/jameslamb)

Approvers:
  - Bradley Dice (https://github.com/bdice)

URL: #893

Author: jameslamb

ci/build_java.sh

@@ -14,7 +14,7 @@ fi
 . /opt/conda/etc/profile.d/conda.sh
 
 rapids-logger "Downloading artifacts from previous jobs"
-CPP_CHANNEL=$(rapids-download-conda-from-s3 cpp)
+CPP_CHANNEL=$(rapids-download-conda-from-github cpp)
 
 rapids-logger "Generate Java testing dependencies"