Use conda-build instead of conda-mambabuild (#1544)

This changes from `conda mambabuild` to `conda build`. Conda now uses the mamba solver so no performance regressions are expected.

This is a temporary change as we plan to migrate to `rattler-build` in the near future. However, this is needed sooner to drop `boa` and unblock Python 3.13 migrations.

xref: rapidsai/build-planning#149

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

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

URL: #1544

ci/build_cpp.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright (c) 2022-2024, NVIDIA CORPORATION.
+# Copyright (c) 2022-2025, NVIDIA CORPORATION.
 
 set -euo pipefail
 
@@ -17,7 +17,7 @@ rapids-logger "Begin cpp build"
 
 sccache --zero-stats
 
-RAPIDS_PACKAGE_VERSION=$(rapids-generate-version) rapids-conda-retry mambabuild \
+RAPIDS_PACKAGE_VERSION=$(rapids-generate-version) rapids-conda-retry build \
     conda/recipes/libcuspatial
 
 sccache --show-adv-stats

ci/build_python.sh

@@ -23,7 +23,7 @@ sccache --zero-stats
 
 # TODO: Remove `--no-test` flag once importing on a CPU
 # node works correctly
-RAPIDS_PACKAGE_VERSION=$(head -1 ./VERSION) rapids-conda-retry mambabuild \
+RAPIDS_PACKAGE_VERSION=$(head -1 ./VERSION) rapids-conda-retry build \
   --no-test \
   --channel "${CPP_CHANNEL}" \
   conda/recipes/cuspatial
@@ -36,7 +36,7 @@ sccache --zero-stats
 
 # TODO: Remove `--no-test` flag once importing on a CPU
 # node works correctly
-RAPIDS_PACKAGE_VERSION=$(head -1 ./VERSION) rapids-conda-retry mambabuild \
+RAPIDS_PACKAGE_VERSION=$(head -1 ./VERSION) rapids-conda-retry build \
   --no-test \
   --channel "${CPP_CHANNEL}" \
   conda/recipes/cuproj