add RAPIDS arm64 builds to CI

Author: trxcllnt

.github/workflows/build-all-rapids-repos.yml

@@ -35,11 +35,14 @@ jobs:
       contents: read
       pull-requests: read
     with:
-      arch: '["amd64"]'
+      arch: '["amd64", "arm64"]'
       cuda: '["12.8"]'
       node_type: cpu32
       extra-repo-deploy-key: CUMLPRIMS_SSH_PRIVATE_DEPLOY_KEY
       build_command: |
+        # Repopulate the cache
+        export SCCACHE_RECACHE=1
+        # Prevent the sccache server from shutting down
         export SCCACHE_IDLE_TIMEOUT=0
         SCCACHE_NO_DAEMON=1 sccache --stop-server
         sccache -z;