Update CI CUDA version from 12.6.3 to 13.1.0

The CUDA graph annotations tutorial requires CUDA >= 13.1 for the
cudaGraphNodeGetToolsId API. Update the CI Docker base image to use
CUDA 13.1.0 so the tutorial can execute with working annotations in
the CI preview.

Without this change, the CI runs with CUDA 12.6.3 which doesn't have
the API at the driver level, causing the tutorial to show 0 annotated
nodes even though cuda-bindings has the Python bindings.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: yushangdi

.ci/docker/build.sh

@@ -11,7 +11,7 @@ IMAGE_NAME="$1"
 shift
 
 export UBUNTU_VERSION="22.04"
-export CUDA_VERSION="12.6.3"
+export CUDA_VERSION="13.1.0"
 
 export BASE_IMAGE="nvidia/cuda:${CUDA_VERSION}-devel-ubuntu${UBUNTU_VERSION}"
 echo "Building ${IMAGE_NAME} Docker image"