disable sccache server timeout in CI (#472)

Author: trxcllnt

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

@@ -40,6 +40,8 @@ jobs:
       node_type: cpu32
       extra-repo-deploy-key: CUMLPRIMS_SSH_PRIVATE_DEPLOY_KEY
       build_command: |
+        export SCCACHE_IDLE_TIMEOUT=0
+        SCCACHE_NO_DAEMON=1 sccache --stop-server
         sccache -z;
         sccache --show-adv-stats;
         clone-all -j$(nproc) -v -q --clone-upstream --single-branch --shallow-submodules;