[bugfix] fix syntax warning caused by backslash

[1195343015]

Purpose

[bugfix] fix syntax warning caused by backslash

[github-actions]

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[gemini-code-assist]

Code Review

This pull request addresses syntax warnings caused by invalid backslash escape sequences in two files. The changes are correct and effectively resolve the warnings. The fix in examples/offline_inference/neuron_eagle.py corrects an f-string, and the change in tests/v1/kv_connector/unit/test_nixl_connector.py updates an ASCII diagram in a docstring. Both changes are straightforward and improve code quality. I have no further comments.

[yewentao256]

Looks good to me, thanks for the fix!