Set default logger level to warn (#17684)

This PR leverages rapidsai/rapids-logger#8 to set the default logging level to warn and updates an associated test.

This PR also makes a CI script change to facilitate testing by ensuring that `RAPIDS_PY_CUDA_SUFFIX` is always defined before we would insert any download commands of files from linked CI.

Authors:
  - Vyas Ramasubramani (https://github.com/vyasr)

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

URL: #17684

ci/build_wheel_libcudf.sh

@@ -1,11 +1,13 @@
 #!/bin/bash
-# Copyright (c) 2023-2024, NVIDIA CORPORATION.
+# Copyright (c) 2023-2025, NVIDIA CORPORATION.
 
 set -euo pipefail
 
 package_name="libcudf"
 package_dir="python/libcudf"
 
+RAPIDS_PY_CUDA_SUFFIX="$(rapids-wheel-ctk-name-gen ${RAPIDS_CUDA_VERSION})"
+
 rapids-logger "Generating build requirements"
 
 rapids-dependency-file-generator \
@@ -28,8 +30,6 @@ export PIP_NO_BUILD_ISOLATION=0
 export SKBUILD_CMAKE_ARGS="-DUSE_NVCOMP_RUNTIME_WHEEL=ON"
 ./ci/build_wheel.sh "${package_name}" "${package_dir}"
 
-RAPIDS_PY_CUDA_SUFFIX="$(rapids-wheel-ctk-name-gen ${RAPIDS_CUDA_VERSION})"
-
 mkdir -p ${package_dir}/final_dist
 python -m auditwheel repair \
     --exclude libnvcomp.so.4 \

cpp/CMakeLists.txt

@@ -276,7 +276,7 @@ rapids_cpm_init()
 
 include(${rapids-cmake-dir}/cpm/rapids_logger.cmake)
 rapids_cpm_rapids_logger()
-rapids_make_logger(cudf EXPORT_SET cudf-exports)
+rapids_make_logger(cudf EXPORT_SET cudf-exports LOGGER_DEFAULT_LEVEL WARN)
 
 # find jitify
 include(cmake/thirdparty/get_jitify.cmake)

cpp/tests/utilities_tests/logger_tests.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023-2024, NVIDIA CORPORATION.
+ * Copyright (c) 2023-2025, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -55,7 +55,7 @@ TEST_F(LoggerTest, DefaultLevel)
   cudf::default_logger().warn("warn");
   cudf::default_logger().error("error");
   cudf::default_logger().critical("critical");
-  ASSERT_EQ(this->sink_content(), "info\nwarn\nerror\ncritical\n");
+  ASSERT_EQ(this->sink_content(), "warn\nerror\ncritical\n");
 }
 
 TEST_F(LoggerTest, CustomLevel)