Move guess_latest.sh to ci/tools/

Consolidate CI scripts under ci/tools/ instead of scattering them
across .github/workflows/.

Author: leofang

ci/tools/env-vars

@@ -69,7 +69,7 @@ elif [[ "${1}" == "test" ]]; then
   # We only test compute-sanitizer on python 3.12 arbitrarily; we don't need to use sanitizer on the entire matrix
   # Only local ctk installs have compute-sanitizer; there is no wheel for it
   if [[ "${PY_VER}" == "3.12" && "${CUDA_VER}" != "11.8.0" && "${LOCAL_CTK}" == 1 && "${HOST_PLATFORM}" == linux* ]]; then
-    echo "LATEST_CUDA_VERSION=$(bash .github/workflows/guess_latest.sh $TEST_CUDA_MAJOR)" >> $GITHUB_ENV
+    echo "LATEST_CUDA_VERSION=$(bash ci/tools/guess_latest.sh $TEST_CUDA_MAJOR)" >> $GITHUB_ENV
     SETUP_SANITIZER=1
   else
     SETUP_SANITIZER=0