Prevent path conflict in builds (#571)

This will make builds fail when there are path conflicts

Authors:
  - Jake Awe (https://github.com/AyodeAwe)

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

URL: #571

ci/build_cpp.sh

@@ -14,6 +14,7 @@ export CMAKE_GENERATOR=Ninja
 rapids-print-env
 
 rapids-logger "Begin cpp build"
+conda config --set path_conflict prevent
 
 rapids-conda-retry mambabuild conda/recipes/rapids_core_dependencies