💾 trunk/9bef974ddddde6404c62e8bd472872f730204633: [ROCm] Skip cuda graph utils tests on ROCm (#186383)

Summary

Add @skipIfRocm to TestMarkKernels and TestGetGraphData in test/test_cuda_graph_utils.py.
These tests depend on cuda.bindings graph introspection APIs (e.g. cudaGraphNodeGetToolsId, get_graph_data) which are NVIDIA-only and have no ROCm equivalent.

Test plan

Confirm test/test_cuda_graph_utils.py skips on ROCm CI (trunk, rocm-mi300)
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